more inclusive

ref #329

Author: wibeasley

.github/workflows/check-release.yaml

@@ -2,9 +2,9 @@
 # https://community.rstudio.com/new-topic?category=Package%20development&tags=github-actions
 on:
   push:
-    branches:
-      - main
-      - master
+    branches-ignore:
+      # Ignore the pkgdown pages.
+      - 'gh-pages'
   pull_request:
     branches:
       - main