docs(home): add discord invitation link (#1074)

* chore(docs): add discord invitation link

* fix: typo

Author: sthuber90

README.md

@@ -1,5 +1,7 @@
 # AWS Lambda Powertools for TypeScript
 
+[![Join our Discord](https://dcbadge.vercel.app/api/server/B8zZKbbyET)](https://discord.gg/B8zZKbbyET)
+
 A suite of utilities for AWS Lambda functions to ease the adoption of best practices such as tracing, structured logging, custom metrics, and more.
 
 You can use the library in both TypeScript and JavaScript code bases.
@@ -83,7 +85,7 @@ Help us prioritize upcoming functionalities or utilities by [upvoting existing R
 
 ## Connect
 
-* **AWS Developers Slack**: `#lambda-powertools` - **[Invite, if you don't have an account](https://join.slack.com/t/awsdevelopers/shared_invite/zt-yryddays-C9fkWrmguDv0h2EEDzCqvw)**
+* **AWS Lambda Powertools on Discord**: `#typescript` - **[Invite link](https://discord.gg/B8zZKbbyET)**
 * **Email**: aws-lambda-powertools-feedback@amazon.com
 
 ## Credits

docs/index.md

@@ -94,7 +94,7 @@ Help us prioritize upcoming functionalities or utilities by [upvoting existing R
 
 ## Connect
 
-* **AWS Developers Slack**: `#lambda-powertools` - [Invite, if you don't have an account](https://join.slack.com/t/awsdevelopers/shared_invite/zt-yryddays-C9fkWrmguDv0h2EEDzCqvw){target="_blank"}
+* **AWS Lambda Powertools on Discord**: `#typescript` - **[Invite link](https://discord.gg/B8zZKbbyET){target="_blank"}**
 * **Email**: aws-lambda-powertools-feedback@amazon.com
 
 ## Credits

packages/commons/README.md

@@ -38,7 +38,7 @@ Each TypeScript utility is installed as standalone NPM package.
 
 ## Connect
 
-* **AWS Developers Slack**: `#lambda-powertools`- **[Invite, if you don't have an account](https://join.slack.com/t/awsdevelopers/shared_invite/zt-yryddays-C9fkWrmguDv0h2EEDzCqvw)**
+* **AWS Lambda Powertools on Discord**: `#typescript` - **[Invite link](https://discord.gg/B8zZKbbyET)**
 * **Email**: aws-lambda-powertools-feedback@amazon.com
 
 ## License

packages/logger/README.md

@@ -71,7 +71,7 @@ Help us prioritize upcoming functionalities or utilities by [upvoting existing R
 
 ## Connect
 
-* **AWS Developers Slack**: `#lambda-powertools` - **[Invite, if you don't have an account](https://join.slack.com/t/awsdevelopers/shared_invite/zt-yryddays-C9fkWrmguDv0h2EEDzCqvw)**
+* **AWS Lambda Powertools on Discord**: `#typescript` - **[Invite link](https://discord.gg/B8zZKbbyET)**
 * **Email**: aws-lambda-powertools-feedback@amazon.com
 
 ## Credits

packages/metrics/README.md

@@ -71,7 +71,7 @@ Help us prioritize upcoming functionalities or utilities by [upvoting existing R
 
 ## Connect
 
-* **AWS Developers Slack**: `#lambda-powertools` - **[Invite, if you don't have an account](https://join.slack.com/t/awsdevelopers/shared_invite/zt-yryddays-C9fkWrmguDv0h2EEDzCqvw)**
+* **AWS Lambda Powertools on Discord**: `#typescript` - **[Invite link](https://discord.gg/B8zZKbbyET)**
 * **Email**: aws-lambda-powertools-feedback@amazon.com
 
 ## Credits

packages/tracer/README.md

@@ -71,7 +71,7 @@ Help us prioritize upcoming functionalities or utilities by [upvoting existing R
 
 ## Connect
 
-* **AWS Developers Slack**: `#lambda-powertools` - **[Invite, if you don't have an account](https://join.slack.com/t/awsdevelopers/shared_invite/zt-yryddays-C9fkWrmguDv0h2EEDzCqvw)**
+* **AWS Lambda Powertools on Discord**: `#typescript` - **[Invite link](https://discord.gg/B8zZKbbyET)**
 * **Email**: aws-lambda-powertools-feedback@amazon.com
 
 ## Credits