add doc

doc/themes/next/.github/support.yml

@@ -0,0 +1,23 @@
+# Configuration for Support Requests - https://github.com/dessant/support-requests
+
+# Label used to mark issues as support requests
+supportLabel: Support
+
+# Comment to post on issues marked as support requests, `{issue-author}` is an
+# optional placeholder. Set to `false` to disable
+supportComment: >
+  :wave: @{issue-author}, we use the issue tracker exclusively for bug reports
+  and feature requests. However, this issue appears to be a support request.
+  Please use our [support channels](https://github.com/theme-next/hexo-theme-next/tree/master#feedback) to get help with the project.
+
+# Close issues marked as support requests
+close: true
+
+# Lock issues marked as support requests
+lock: false
+
+# Assign `off-topic` as the reason for locking. Set to `false` to disable
+setLockReason: true
+
+# Repository to extend settings from
+# _extends: repo