README.md in meowcop-3.0.1 vs README.md in meowcop-3.1.0

@@ -82,10 +82,10 @@
 $ bundle exec rake install
 ```
 
 To release a new version,
 
-1. Move to the **master** branch and fetch the latest revision. E.g. `git checkout master && git pull`
+1. Move to the `main` branch and fetch the latest revision. E.g. `git checkout main && git pull`
 2. Update the version number in [`version.rb`](lib/meowcop/version.rb).
 3. Update the [changelog](CHANGELOG.md).
 4. Commit the updated files with the following message: `Release x.y.z`
 5. Run the `bundle exec rake release` command. This command will:
     - create a git tag for the new version