Update README.md

Author: maxiplux

README.md

@@ -46,6 +46,13 @@ Using Docker:
     docker build -t fastapi-devops .
     docker run -p 8000:8000 -e DB_USERNAME=your_username -e DB_PASSWORD=your_password -e DB_HOST=your_host -e DB_NAME=your_db_name fastapi-devops
 
+#Video with the answer to project 4:
+## https://www.youtube.com/watch?v=03fnj4TSAwI
+    
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+
 Contributing
 ------------