Update _episodes/06-debugging.md

Co-authored-by: Peter Kalverla <[email protected]>

Author: SarahAlidoost

_episodes/06-debugging.md

@@ -18,7 +18,7 @@ This lesson helps to understand what the different types of errors are and when
 
 ## Log files
 
-Each time we run the ESMValTool, it will produce a new output directory.
+Each time we run ESMValTool, it will produce a new output directory.
 This directory should contain the ``run`` folder that is automatically generated by ESMValTool.
 To examine this, we run an example recipe that can be found in:
 [recipe_example.yml](link).