docs: update readme

Author: kamilmysliwiec

README.md

@@ -22,6 +22,10 @@
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+## Description
+
+Recipes for [Mau](https://mau.nestjs.com).
+
 ## Table of contents
 
 - [1. HTTP](/01-http/)
@@ -31,6 +35,7 @@
 - [5. Databases](/05-databases/)
 - [6. CRON job (scheduled task)](/06-cron/)
 - [7. Lambda function](/07-lambda/)
+- 8. Websockets (coming soon)
 
 ## Resources