diff --git a/README-cn.md b/README-cn.md
index d42adc5f..73589fdd 100644
--- a/README-cn.md
+++ b/README-cn.md
@@ -56,22 +56,23 @@
 
 ## Backers
 
-<a href="https://github.com/bigorange1900" target="_blank"><img style="border-radius:50%!important" width="64px" src="https://avatars1.githubusercontent.com/u/49062011?s=64&v=4"></a>
-<a href="https://github.com/14632791" target="_blank"><img style="border-radius:50%!important" width="64px" src="https://avatars3.githubusercontent.com/u/27358331?s=64&v=4"></a>
-<a href="https://github.com/IUpdatable" target="_blank"><img style="border-radius:50%!important" width="64px" src="https://avatars2.githubusercontent.com/u/51181716?s=64&v=4"></a>
-<a href="https://github.com/maplewei" target="_blank"><img style="border-radius:50%!important" width="64px" src="https://avatars1.githubusercontent.com/u/13778095?s=64&v=4"></a>
-<a href="https://github.com/sunshang-hl" target="_blank"><img style="border-radius:50%!important" width="64px" src="https://avatars1.githubusercontent.com/u/34593206?s=64&v=4"></a>
-<a href="https://github.com/yangkang326" target="_blank"><img style="border-radius:50%!important" width="64px" src="https://avatars1.githubusercontent.com/u/51224259?s=64&v=4"></a>	
-<a href="https://github.com/zmrbak" target="_blank"><img style="border-radius:50%!important" width="64px" src="https://avatars3.githubusercontent.com/u/7257543?s=64&v=4"></a>	
-<a href="https://github.com/AFei19911012" target="_blank"><img style="border-radius:50%!important" width="64px" src="https://avatars0.githubusercontent.com/u/31465314?s=64&v=4"></a>
-<a href="https://github.com/wayne2006" target="_blank"><img style="border-radius:50%!important" width="64px" src="https://avatars0.githubusercontent.com/u/21210915?s=64&v=4"></a>
-<a href="https://github.com/towerDLH" target="_blank"><img style="border-radius:50%!important" width="64px" src="https://avatars1.githubusercontent.com/u/53053537?s=64&v=4"></a>
-<a href="https://github.com/BluceBosen" target="_blank"><img style="border-radius:50%!important" width="64px" src="https://avatars3.githubusercontent.com/u/24750822?s=64&v=4"></a>
-<a href="https://github.com/MrZhangYuan" target="_blank"><img style="border-radius:50%!important" width="64px" src="https://avatars2.githubusercontent.com/u/16384123?s=64&v=4"></a>
-<a href="https://github.com/YC946586" target="_blank"><img style="border-radius:50%!important" width="64px" src="https://avatars2.githubusercontent.com/u/49895722?s=64&v=4"></a>
-<a href="https://github.com/wihalo" target="_blank"><img style="border-radius:50%!important" width="64px" src="https://avatars0.githubusercontent.com/u/26402999?s=64&v=4"></a>
-<a href="https://github.com/startewho" target="_blank"><img style="border-radius:50%!important" width="64px" src="https://avatars0.githubusercontent.com/u/898009?s=64&v=4"></a>
-<a href="https://github.com/5653325" target="_blank"><img style="border-radius:50%!important" width="64px" src="https://avatars1.githubusercontent.com/u/3361135?s=64&v=4"></a>
+<a href="https://github.com/bigorange1900" target="_blank"><img style="border-radius:50%!important" width="64px" alt="bigorange1900" src="https://avatars1.githubusercontent.com/u/49062011?s=64&v=4"></a>
+<a href="https://github.com/14632791" target="_blank"><img style="border-radius:50%!important" width="64px" alt="14632791" src="https://avatars3.githubusercontent.com/u/27358331?s=64&v=4"></a>
+<a href="https://github.com/IUpdatable" target="_blank"><img style="border-radius:50%!important" width="64px" alt="IUpdatable" src="https://avatars2.githubusercontent.com/u/51181716?s=64&v=4"></a>
+<a href="https://github.com/maplewei" target="_blank"><img style="border-radius:50%!important" width="64px" alt="maplewei" src="https://avatars1.githubusercontent.com/u/13778095?s=64&v=4"></a>
+<a href="https://github.com/sunshang-hl" target="_blank"><img style="border-radius:50%!important" width="64px" alt="sunshang-hl" src="https://avatars1.githubusercontent.com/u/34593206?s=64&v=4"></a>
+<a href="https://github.com/yangkang326" target="_blank"><img style="border-radius:50%!important" width="64px" alt="yangkang326" src="https://avatars1.githubusercontent.com/u/51224259?s=64&v=4"></a>	
+<a href="https://github.com/zmrbak" target="_blank"><img style="border-radius:50%!important" width="64px" alt="zmrbak" src="https://avatars3.githubusercontent.com/u/7257543?s=64&v=4"></a>	
+<a href="https://github.com/AFei19911012" target="_blank"><img style="border-radius:50%!important" width="64px" alt="AFei19911012" src="https://avatars0.githubusercontent.com/u/31465314?s=64&v=4"></a>
+<a href="https://github.com/wayne2006" target="_blank"><img style="border-radius:50%!important" width="64px" alt="wayne2006" src="https://avatars0.githubusercontent.com/u/21210915?s=64&v=4"></a>
+<a href="https://github.com/towerDLH" target="_blank"><img style="border-radius:50%!important" width="64px" alt="towerDLH" src="https://avatars1.githubusercontent.com/u/53053537?s=64&v=4"></a>
+<a href="https://github.com/BluceBosen" target="_blank"><img style="border-radius:50%!important" width="64px" alt="BluceBosen" src="https://avatars3.githubusercontent.com/u/24750822?s=64&v=4"></a>
+<a href="https://github.com/MrZhangYuan" target="_blank"><img style="border-radius:50%!important" width="64px" alt="MrZhangYuan" src="https://avatars2.githubusercontent.com/u/16384123?s=64&v=4"></a>
+<a href="https://github.com/YC946586" target="_blank"><img style="border-radius:50%!important" width="64px" alt="YC946586" src="https://avatars2.githubusercontent.com/u/49895722?s=64&v=4"></a>
+<a href="https://github.com/wihalo" target="_blank"><img style="border-radius:50%!important" width="64px" alt="wihalo" src="https://avatars0.githubusercontent.com/u/26402999?s=64&v=4"></a>
+<a href="https://github.com/startewho" target="_blank"><img style="border-radius:50%!important" width="64px" alt="startewho" src="https://avatars0.githubusercontent.com/u/898009?s=64&v=4"></a>
+<a href="https://github.com/5653325" target="_blank"><img style="border-radius:50%!important" width="64px" alt="5653325" src="https://avatars1.githubusercontent.com/u/3361135?s=64&v=4"></a>
+<a href="https://github.com/LostAsk" target="_blank"><img style="border-radius:50%!important" width="64px" alt="LostAsk" src="https://avatars0.githubusercontent.com/u/46678241?s=64&v=4"></a>
 
 ## Special thanks to
 
diff --git a/README.md b/README.md
index 44f61af8..f723d49a 100644
--- a/README.md
+++ b/README.md
@@ -56,22 +56,23 @@
 
 ## Backers
 
-<a href="https://github.com/bigorange1900" target="_blank"><img style="border-radius:50%!important" width="64px" src="https://avatars1.githubusercontent.com/u/49062011?s=64&v=4"></a>
-<a href="https://github.com/14632791" target="_blank"><img style="border-radius:50%!important" width="64px" src="https://avatars3.githubusercontent.com/u/27358331?s=64&v=4"></a>
-<a href="https://github.com/IUpdatable" target="_blank"><img style="border-radius:50%!important" width="64px" src="https://avatars2.githubusercontent.com/u/51181716?s=64&v=4"></a>
-<a href="https://github.com/maplewei" target="_blank"><img style="border-radius:50%!important" width="64px" src="https://avatars1.githubusercontent.com/u/13778095?s=64&v=4"></a>
-<a href="https://github.com/sunshang-hl" target="_blank"><img style="border-radius:50%!important" width="64px" src="https://avatars1.githubusercontent.com/u/34593206?s=64&v=4"></a>
-<a href="https://github.com/yangkang326" target="_blank"><img style="border-radius:50%!important" width="64px" src="https://avatars1.githubusercontent.com/u/51224259?s=64&v=4"></a>	
-<a href="https://github.com/zmrbak" target="_blank"><img style="border-radius:50%!important" width="64px" src="https://avatars3.githubusercontent.com/u/7257543?s=64&v=4"></a>	
-<a href="https://github.com/AFei19911012" target="_blank"><img style="border-radius:50%!important" width="64px" src="https://avatars0.githubusercontent.com/u/31465314?s=64&v=4"></a>
-<a href="https://github.com/wayne2006" target="_blank"><img style="border-radius:50%!important" width="64px" src="https://avatars0.githubusercontent.com/u/21210915?s=64&v=4"></a>
-<a href="https://github.com/towerDLH" target="_blank"><img style="border-radius:50%!important" width="64px" src="https://avatars1.githubusercontent.com/u/53053537?s=64&v=4"></a>
-<a href="https://github.com/BluceBosen" target="_blank"><img style="border-radius:50%!important" width="64px" src="https://avatars3.githubusercontent.com/u/24750822?s=64&v=4"></a>
-<a href="https://github.com/MrZhangYuan" target="_blank"><img style="border-radius:50%!important" width="64px" src="https://avatars2.githubusercontent.com/u/16384123?s=64&v=4"></a>
-<a href="https://github.com/YC946586" target="_blank"><img style="border-radius:50%!important" width="64px" src="https://avatars2.githubusercontent.com/u/49895722?s=64&v=4"></a>
-<a href="https://github.com/wihalo" target="_blank"><img style="border-radius:50%!important" width="64px" src="https://avatars0.githubusercontent.com/u/26402999?s=64&v=4"></a>
-<a href="https://github.com/startewho" target="_blank"><img style="border-radius:50%!important" width="64px" src="https://avatars0.githubusercontent.com/u/898009?s=64&v=4"></a>
-<a href="https://github.com/5653325" target="_blank"><img style="border-radius:50%!important" width="64px" src="https://avatars1.githubusercontent.com/u/3361135?s=64&v=4"></a>
+<a href="https://github.com/bigorange1900" target="_blank"><img style="border-radius:50%!important" width="64px" alt="bigorange1900" src="https://avatars1.githubusercontent.com/u/49062011?s=64&v=4"></a>
+<a href="https://github.com/14632791" target="_blank"><img style="border-radius:50%!important" width="64px" alt="14632791" src="https://avatars3.githubusercontent.com/u/27358331?s=64&v=4"></a>
+<a href="https://github.com/IUpdatable" target="_blank"><img style="border-radius:50%!important" width="64px" alt="IUpdatable" src="https://avatars2.githubusercontent.com/u/51181716?s=64&v=4"></a>
+<a href="https://github.com/maplewei" target="_blank"><img style="border-radius:50%!important" width="64px" alt="maplewei" src="https://avatars1.githubusercontent.com/u/13778095?s=64&v=4"></a>
+<a href="https://github.com/sunshang-hl" target="_blank"><img style="border-radius:50%!important" width="64px" alt="sunshang-hl" src="https://avatars1.githubusercontent.com/u/34593206?s=64&v=4"></a>
+<a href="https://github.com/yangkang326" target="_blank"><img style="border-radius:50%!important" width="64px" alt="yangkang326" src="https://avatars1.githubusercontent.com/u/51224259?s=64&v=4"></a>	
+<a href="https://github.com/zmrbak" target="_blank"><img style="border-radius:50%!important" width="64px" alt="zmrbak" src="https://avatars3.githubusercontent.com/u/7257543?s=64&v=4"></a>	
+<a href="https://github.com/AFei19911012" target="_blank"><img style="border-radius:50%!important" width="64px" alt="AFei19911012" src="https://avatars0.githubusercontent.com/u/31465314?s=64&v=4"></a>
+<a href="https://github.com/wayne2006" target="_blank"><img style="border-radius:50%!important" width="64px" alt="wayne2006" src="https://avatars0.githubusercontent.com/u/21210915?s=64&v=4"></a>
+<a href="https://github.com/towerDLH" target="_blank"><img style="border-radius:50%!important" width="64px" alt="towerDLH" src="https://avatars1.githubusercontent.com/u/53053537?s=64&v=4"></a>
+<a href="https://github.com/BluceBosen" target="_blank"><img style="border-radius:50%!important" width="64px" alt="BluceBosen" src="https://avatars3.githubusercontent.com/u/24750822?s=64&v=4"></a>
+<a href="https://github.com/MrZhangYuan" target="_blank"><img style="border-radius:50%!important" width="64px" alt="MrZhangYuan" src="https://avatars2.githubusercontent.com/u/16384123?s=64&v=4"></a>
+<a href="https://github.com/YC946586" target="_blank"><img style="border-radius:50%!important" width="64px" alt="YC946586" src="https://avatars2.githubusercontent.com/u/49895722?s=64&v=4"></a>
+<a href="https://github.com/wihalo" target="_blank"><img style="border-radius:50%!important" width="64px" alt="wihalo" src="https://avatars0.githubusercontent.com/u/26402999?s=64&v=4"></a>
+<a href="https://github.com/startewho" target="_blank"><img style="border-radius:50%!important" width="64px" alt="startewho" src="https://avatars0.githubusercontent.com/u/898009?s=64&v=4"></a>
+<a href="https://github.com/5653325" target="_blank"><img style="border-radius:50%!important" width="64px" alt="5653325" src="https://avatars1.githubusercontent.com/u/3361135?s=64&v=4"></a>
+<a href="https://github.com/LostAsk" target="_blank"><img style="border-radius:50%!important" width="64px" alt="LostAsk" src="https://avatars0.githubusercontent.com/u/46678241?s=64&v=4"></a>
 
 ## Special thanks to