Add language type

README.md

@@ -26,7 +26,7 @@ To parse a sentence using xle-docker, you need three things:
 
 Then, you have to execute the following command:
 
-```
+```bash
 sudo docker run -it \
      --mount type=bind,source=/home/mustermann/grammatik.lfg,target=/grammar.lfg \
      --mount type=bind,source=/home/mustermann/parses,target=/output \