Update README.md

Author: SimLi1333

README.md

@@ -96,9 +96,12 @@ The ConditionalRunner leverages Python's built-in logging system to provide insi
 ## Demo
 
 > There is a nice, extensive demo [`nornir-conditional-runner-demo`](https://github.com/InfrastructureAsCode-ch/nornir_conditional_runner_demo) done with NetLab by [`Urs Baumann`](https://github.com/ubaumann).
+
 > Or there are short demos, which can be found in the [demo/demo.py](demo/demo.py) file.
-Demo topology with conditional groups:
-![Demo topology](demo/demo_topology_drawio.png)
+>
+> Demo topology with conditional groups:
+>
+> ![Demo topology](demo/demo_topology_drawio.png)
 
 ## Error Handling / fallback to default behavior of the threaded runner