Update inspect_wep with information about the origin of "run_name".

inspect_wep/inspect_wep.rst

@@ -31,6 +31,15 @@ Details about the milestone, execution and verification can be found in
     instrument = "LSSTCam"
     repo_dir = "/scratch/IM_Pf/LSSTCam"
 
+The DM pipeline run name
+------------------------
+
+The following cell specify the wep "run name".
+This string is generated by the MTAOS when executing the `runWEP` command and is used in the butler to differentiate between different executions of the pipeline.
+
+For now, this value is sent by the MTAOS as a log message so, when executing the integration milestone you will have to inspect the logs to find the associated entry.
+In the future the MTAOS will publish this information as an event, which will make it easier to determine it's value during the execution.
+
 .. code:: ipython3
 
     mtaos_run = "mtaos_wep_tribeiro_nb_tribeiro_20220304T234403714"