Update WorkflowRunner.md

Author: sawenzel

MC/doc/WorkflowRunner.md

@@ -77,7 +77,9 @@ Further keys in this format are:
 | `cwd` | the workding directory where this is to be executed |
 | `label` | a list labels, describing this stage. Can be used to execute workfow in stages (such as 'do all digitization', 'run everthing for ITS' 
 
-A workflow is generated by different tools. A current example following the PWGHF embedding exercise can be found here https://github.com/AliceO2Group/O2DPG/blob/master/MC/run/PWGHF/create_embedding_workflow.py
+While a workflow may be written by hand, it's more pratical to have it programmatically generated by sripts, that is sensitive to configuration and options. A current example following the PWGHF embedding exercise can be found here [create_embedding_workflow](https://github.com/AliceO2Group/O2DPG/blob/master/MC/run/PWGHF/create_embedding_workflow.py)
+
+In fact such a create script could be seen as the **actual succession of former `dpg_sim.sh`**.
 
 # Workflow example:
 
@@ -87,7 +89,7 @@ A workflow doing a common background simulation, followed by 2 timeframes of sig
 
 ## Example usage
 
-Produce a simulation workflow (like in the graph), for example using https://github.com/AliceO2Group/O2DPG/blob/master/MC/run/PWGHF/create_embedding_workflow.py:
+Produce a simulation workflow (like in the graph), for example using [create_embedding_workflow.py](https://github.com/AliceO2Group/O2DPG/blob/master/MC/run/PWGHF/create_embedding_workflow.py):
 ```
 ./create_embedding_workflow.py -e TGeant3 -nb 1 -ns 10 -j 8 -tf 2 
 ```