Add note about rendering as a python comment and add sourcelink option re #13867

docs/source/algorithms/Comment-v1.rst

@@ -14,6 +14,8 @@ This simple algorithm just adds a comment record to the history of a workspace a
 
 It does not change the data within a workspace in any way.
 
+When outputing the histroy to Python this comment will be rendered as a python comment.
+
 
 Usage
 -----
@@ -38,4 +40,4 @@ Output:
 .. categories::
 
 .. sourcelink::
-
+ :h: Framework/Algorithms/inc/MantidAlgorithms/Comment.h