add highlight as bash

README.md

@@ -8,13 +8,13 @@ Bevor starting the service as the first time a secret key has to been created.
 
 For creating the key add store it to the file `/etc/munge/munge.key` the following script is provided:
 
-```
+```bash
 create-munge-key
 ```
 
 In the second step you can start und enable the munge service.
 
-```
+```bash
 systemctl start munge
 systemctl enalbe munge
 ```