Merge pull request #313 from suvmanda/update-function-documentation-restoreWorkspace

update function documentation restoreWorkspace

Author: GuentherJulian

documentation/Functions.md

@@ -76,6 +76,7 @@ Note:
 ***
 
 ### restoreWorkspace <a name="restoreWorkspace"></a>
+This function is used to clone an existing GitHub repository to the working directory of the tutorial. It can be used to continue the tutorial with the state of a previous tutorial located in the repository to be cloned.
 #### parameter
 1. (Optional) Name of the workspace repository {"workspace": string} (Default is the playbook-name)