Update README.md

README.md

@@ -17,4 +17,38 @@ The Container need our certificate! -> Check if this works now?
 
 # Documentation
 
-[Documentation](./doc/README.md)
+[Documentation](./doc/README.md)
+
+# Docker cleanup
+
+1. Stop and Remove All Running & Stopped Containers
+
+```bash
+docker stop $(docker ps -aq)  # Stop all running containers
+docker rm $(docker ps -aq)    # Remove all containers
+```
+
+2. Remove All Images
+
+```bash
+docker rmi -f $(docker images -q)  # Remove all images
+```
+
+3. Remove All Volumes
+
+```bash
+docker volume rm $(docker volume ls -q)  # Delete all volumes
+```
+
+4. Remove Build Cache (BuildKit & Layers)
+
+```bash
+docker builder prune -a -f
+```
+
+5. Remove All Networks (Optional)
+
+```bash
+docker network prune -f
+```
+