fix(docs): removed optional from collaborator create command as omitt…

…ing it leads to an error when starting the collaborator for some templates

Signed-off-by: Pant, Akshay <[email protected]>

docs/about/features_index/taskrunner.rst

@@ -382,7 +382,7 @@ Importing the Workspace
 
     .. code-block:: console
 
-       $ fx collaborator create -n {COL_LABEL} -d {DATA_PATH:optional}
+       $ fx collaborator create -n {COL_LABEL} -d {DATA_PATH}
        $ fx collaborator generate-cert-request -n {COL_LABEL}