chore(repo): switch default branch references to main

Author: ricardofrantz

.github/workflows/ci.yml

@@ -2,9 +2,9 @@ name: CI
 
 on:
   push:
-    branches: [master, main]
+    branches: [main]
   pull_request:
-    branches: [master, main]
+    branches: [main]
 
 # Default to least privilege (I1). Jobs that need more (e.g.,
 # writing to the repo) must override at job scope. CI is read-only

RELEASING.md

@@ -18,7 +18,7 @@ git commit -m "Release v0.2.0"
 
 # 3. Create and push tag
 git tag v0.2.0
-git push origin master
+git push origin main
 git push origin v0.2.0
 ```