Add Postman and Cypress (#14)

Author: alauregaillard

docs/community/community.md

@@ -11,4 +11,6 @@ Here are some slack channels that you can join
 - [Selenium](https://www.selenium.dev/support/)
 - [Report portal](https://reportportal-slack-auto.herokuapp.com/)
 - [PACT foundation](https://slack.pact.io/)
-- [Kotlin](https://kotlinlang.org/community/)
+- [Kotlin](https://kotlinlang.org/community/)
+- [Cypress](https://gitter.im/cypress-io/cypress)
+- [Postman] (https://community.postman.com/)