docs: Add docs build badge

Author: j3soon

README.md

@@ -1,6 +1,7 @@
 # ROS 2 Essentials
 
 [![tests](https://img.shields.io/github/actions/workflow/status/j3soon/ros2-essentials/test-common.yaml?label=tests)](https://github.com/j3soon/ros2-essentials/actions/workflows/test-common.yaml)
+[![docs](https://img.shields.io/github/actions/workflow/status/j3soon/ros2-essentials/build-docs.yaml?label=docs)](https://j3soon.github.io/ros2-essentials/)
 
 A repo containing essential ROS2 Humble features for controlling Autonomous Mobile Robots (AMRs). Please setup an Ubuntu environment before using this repo.
 

docs/index.md

@@ -1,6 +1,7 @@
 # ROS 2 Essentials
 
 [![tests](https://img.shields.io/github/actions/workflow/status/j3soon/ros2-essentials/test-common.yaml?label=tests)](https://github.com/j3soon/ros2-essentials/actions/workflows/test-common.yaml)
+[![docs](https://img.shields.io/github/actions/workflow/status/j3soon/ros2-essentials/build-docs.yaml?label=docs)](https://j3soon.github.io/ros2-essentials/)
 
 A repo containing essential ROS2 Humble features for controlling Autonomous Mobile Robots (AMRs). Please setup an Ubuntu environment before using this repo.