Update wiki-sync.yml

Author: mtmtyu

.github/workflows/wiki-sync.yml

@@ -2,7 +2,7 @@ name: Sync docs/wiki to GitHub Wiki
 
 on:
   push:
-    branches: [main]
+    branches: [master]
     paths:
       - 'docs/wiki/**'
       - '.github/workflows/wiki-sync.yml'
@@ -23,4 +23,4 @@ jobs:
         with:
           path: docs/wiki/
           strategy: clone
-          commit-message: "wiki: sync from ${{ github.sha }}"
+          commit-message: "wiki: sync from ${{ github.sha }}"