README.md in dead_end-3.0.1 vs README.md in dead_end-3.0.2

@@ -43,10 +43,17 @@
 
     $ gem install dead_end
 
 This gives you the CLI command `$ dead_end` for more info run `$ dead_end --help`.
 
+## Editor integration
+
+An extension is available for VSCode:
+
+- Extension: https://marketplace.visualstudio.com/items?itemName=Zombocom.dead-end-vscode
+- GitHub: https://github.com/zombocom/dead_end-vscode
+
 ## What syntax errors does it handle?
 
 Dead end will fire against all syntax errors and can isolate any syntax error. In addition, dead_end attempts to produce human readable descriptions of what needs to be done to resolve the issue. For example:
 
 - Missing `end`:
@@ -193,15 +200,15 @@
 $ qcachegrind tmp/last/profile.callgrind.out.<numbers>
 ```
 
 ## Contributing
 
-Bug reports and pull requests are welcome on GitHub at https://github.com/zombocom/dead_end. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the [code of conduct](https://github.com/zombocom/dead_end/blob/master/CODE_OF_CONDUCT.md).
+Bug reports and pull requests are welcome on GitHub at https://github.com/zombocom/dead_end. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the [code of conduct](https://github.com/zombocom/dead_end/blob/main/CODE_OF_CONDUCT.md).
 
 
 ## License
 
 The gem is available as open source under the terms of the [MIT License](https://opensource.org/licenses/MIT).
 
 ## Code of Conduct
 
-Everyone interacting in the DeadEnd project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the [code of conduct](https://github.com/zombocom/dead_end/blob/master/CODE_OF_CONDUCT.md).
+Everyone interacting in the DeadEnd project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the [code of conduct](https://github.com/zombocom/dead_end/blob/main/CODE_OF_CONDUCT.md).