docs: update discord invite link (#3195)

Author: timdeschryver

README.md

@@ -4,7 +4,7 @@ Reactive libraries for Angular
 
 [![CircleCI](https://circleci.com/gh/ngrx/platform/tree/master.svg?style=shield)](https://circleci.com/gh/ngrx/workflows/platform/tree/master)
 [![Join the chat at https://gitter.im/ngrx/platform](https://badges.gitter.im/ngrx/platform.svg)](https://gitter.im/ngrx/platform?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
-[![Join the discord server at https://discord.com/invite/gCEj4zC](https://img.shields.io/discord/740557383109050469.svg?color=7389D8&labelColor=6A7EC2&logo=discord&logoColor=ffffff&style=flat-square)](https://discord.com/invite/gCEj4zC) 
+[![Join the discord server at https://discord.com/invite/ngrx](https://img.shields.io/discord/740557383109050469.svg?color=7389D8&labelColor=6A7EC2&logo=discord&logoColor=ffffff&style=flat-square)](https://discord.com/invite/ngrx)
 [![Commitizen friendly](https://img.shields.io/badge/commitizen-friendly-brightgreen.svg)](https://commitizen.github.io/cz-cli/)
 [![npm version](https://badge.fury.io/js/%40ngrx%2Fstore.svg)](https://www.npmjs.com/@ngrx/store)
 

projects/ngrx.io/content/navigation.json

@@ -539,7 +539,7 @@
           "tooltip": "Stack Overflow: where the community answers your technical NgRx questions."
         },
         {
-          "url": "https://discord.gg/gCEj4zC",
+          "url": "https://discord.com/invite/ngrx",
           "title": "Discord Server",
           "tooltip": "NgRx Community Discord Server - chat with other members of the community."
         },