Renaming master branch references to main

.github/dependabot.yml

@@ -8,7 +8,7 @@ updates:
       interval: weekly
       day: monday
       time: '00:00'
-    target-branch: master
+    target-branch: main
     versioning-strategy: increase-if-necessary
 
   - package-ecosystem: github-actions
@@ -17,4 +17,4 @@ updates:
       interval: weekly
       day: monday
       time: '00:00'
-    target-branch: master
+    target-branch: main

README.md

@@ -578,4 +578,4 @@ The gem is available as open source under the terms of the [MIT License](https:/
 
 ## Code of Conduct
 
-Everyone interacting in the Pdfmonkey project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the [code of conduct](https://github.com/pdfmonkeyio/pdfmonkey-ruby/blob/master/CODE_OF_CONDUCT.md).
+Everyone interacting in the Pdfmonkey project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the [code of conduct](https://github.com/pdfmonkeyio/pdfmonkey-ruby/blob/main/CODE_OF_CONDUCT.md).

pdfmonkey.gemspec

@@ -16,7 +16,7 @@ Gem::Specification.new do |spec|
   spec.license       = 'MIT'
 
   spec.metadata = {
-    'changelog_uri' => 'https://github.com/pdfmonkeyio/pdfmonkey-ruby/blob/master/CHANGELOG.md',
+    'changelog_uri' => 'https://github.com/pdfmonkeyio/pdfmonkey-ruby/blob/main/CHANGELOG.md',
     'source_code_uri' => 'https://github.com/pdfmonkeyio/pdfmonkey-ruby',
     'rubygems_mfa_required' => 'true'
   }