README: consistent code blocks

README.md

@@ -17,7 +17,7 @@ the server. You can log in as "admin" with password "password".
 If you want to run the scheduler alongside castellum for development you
 need to set the following settings in castellum:
 
-```
+```python
 SCHEDULER_URL = 'http://localhost:8001'
 SCHEDULER_TOKEN = 'CHANGEME'
 ```
@@ -42,9 +42,11 @@ described above.
 
 Example:
 
-    $ curl -X PUT -H 'Authorization: token CHANGEME' http://localhost:8001/api/1/foo/
-    $ curl -X GET -H 'Authorization: token CHANGEME' http://localhost:8001/api/1/foo/
-    {"datetime": "2020-11-03T07:00:00"}
-    $ curl -X DELETE -H 'Authorization: token CHANGEME' http://localhost:8001/api/1/foo/
+```sh
+$ curl -X PUT -H 'Authorization: token CHANGEME' http://localhost:8001/api/1/foo/
+$ curl -X GET -H 'Authorization: token CHANGEME' http://localhost:8001/api/1/foo/
+{"datetime": "2020-11-03T07:00:00"}
+$ curl -X DELETE -H 'Authorization: token CHANGEME' http://localhost:8001/api/1/foo/
+```
 
 [1]: https://www.mpib-berlin.mpg.de/research-data/castellum