Replace slack with discord

See:
- cucumber/common#2195
- https://github.com/orgs/cucumber/discussions/2197

CONTRIBUTING.md

@@ -2,7 +2,7 @@
 
 Welcome! 👋 We're happy to have you here. Thank you for your interest in contributing to the [Cucumber Visual Studio Code extension](https://marketplace.visualstudio.com/items?itemName=CucumberOpen.cucumber-official).
 
-This guide will provide you with the information you need to start making awesome contributions to this project. If you encounter a problem, please reach out for help through our [Slack community](https://cucumber.io/community#slack) or feel free to [open an Issue](https://github.com/cucumber/vscode/issues).
+This guide will provide you with the information you need to start making awesome contributions to this project. If you encounter a problem, please reach out for help through our [Discord community](https://cucumber.io/docs/community/get-in-touch#discord) or feel free to [open an Issue](https://github.com/cucumber/vscode/issues).
 
 We look forward to supporting your contributions! 💖
 

README.md

@@ -115,7 +115,7 @@ New translations or updates are welcome and can be submitted through the [gherki
 
 Step definitions support is provided for [different languages and frameworks](#features).
 
-If you experience an issue with a supported language, please [raise a detailed bug report](https://github.com/cucumber/vscode/issues) or reach out for help through [our Slack community](https://cucumber.io/community#slack).
+If you experience an issue with a supported language, please [raise a detailed bug report](https://github.com/cucumber/vscode/issues) or reach out for help through [our Discord community](https://cucumber.io/docs/community/get-in-touch#discord).
 
 If your language or framework is unsupported, please [open an issue](https://github.com/cucumber/language-service/issues) or [raise a pull request](https://github.com/cucumber/language-service/pulls) in the [Cucumber Language Service](https://github.com/cucumber/language-service) - where language support is implemented.