docs: add pipeline badge to README.md

Author: surajkumar

README.md

@@ -9,6 +9,9 @@
 [![Reliability Rating](https://sonarcloud.io/api/project_badges/measure?project=Together-Java_TJ-Bot&metric=reliability_rating)](https://sonarcloud.io/dashboard?id=Together-Java_TJ-Bot)
 [![Security Rating](https://sonarcloud.io/api/project_badges/measure?project=Together-Java_TJ-Bot&metric=security_rating)](https://sonarcloud.io/dashboard?id=Together-Java_TJ-Bot)
 
+[![Pipeline](https://woodpecker.togetherjava.org/api/badges/1/status.svg)](https://woodpecker.togetherjava.org/repos/1)
+
+
 TJ-Bot is a Discord Bot used on the [Together Java](https://discord.com/invite/XXFUXzK) server. It is maintained by the community, anyone can contribute!
 
 ![bot says hello](https://i.imgur.com/FE1MJTV.png)