chore: rename master branch to main

.github/workflows/linters.yml

@@ -4,7 +4,7 @@ name: Linters
 on:
   push:
     branches:
-      - master
+      - main
   pull_request:
 
 jobs:

.github/workflows/specs_rails60.yml

@@ -4,10 +4,10 @@ name: Specs Rails 6.0
 on:
   push:
     branches:
-      - master
+      - main
   pull_request:
     branches:
-      - master
+      - main
 
 jobs:
   tests:

.github/workflows/specs_rails61.yml

@@ -4,10 +4,10 @@ name: Specs Rails 6.1
 on:
   push:
     branches:
-      - master
+      - main
   pull_request:
     branches:
-      - master
+      - main
 
 jobs:
   tests:

.github/workflows/specs_rails70.yml

@@ -4,10 +4,10 @@ name: Specs Rails 7.0
 on:
   push:
     branches:
-      - master
+      - main
   pull_request:
     branches:
-      - master
+      - main
 
 jobs:
   tests:

activeadmin_quill_editor.gemspec

@@ -17,7 +17,7 @@ Gem::Specification.new do |spec|
   spec.required_ruby_version = '>= 2.6.0'
 
   spec.metadata['homepage_uri']    = spec.homepage
-  spec.metadata['changelog_uri']   = 'https://github.com/blocknotes/activeadmin_quill_editor/blob/master/CHANGELOG.md'
+  spec.metadata['changelog_uri']   = 'https://github.com/blocknotes/activeadmin_quill_editor/blob/main/CHANGELOG.md'
   spec.metadata['source_code_uri'] = spec.homepage
 
   spec.metadata['rubygems_mfa_required'] = 'true'