Update link-check.yml

Author: bendichter

.github/workflows/link-check.yml

@@ -7,7 +7,7 @@ on:
     - cron: '0 5 * * 0'
   # Runs on pull requests targeting the dev branch
   pull_request:
-    branches: ["dev"]
+    branches: ["main"]
   # Allows you to run this workflow manually from the Actions tab
   workflow_dispatch: