Update README.md

Author: rdimitrov

README.md

@@ -24,7 +24,7 @@ The action is based on the Frizbee tool, available both as a CLI and as a librar
 
 To use the Frizbee Action, you can use the following methods:
 
-```bash
+```yml
 name: Frizbee Pinned Actions and Container Images Check
 
 on:
@@ -93,4 +93,4 @@ We welcome contributions to Frizbee Action. Please see our [Contributing](./CONT
 
 ## License
 
-Frizbee is licensed under the [Apache 2.0 License](./LICENSE).
+Frizbee is licensed under the [Apache 2.0 License](./LICENSE).