Fixing ssh port in the git clone documentation

Workflow for documentation production in OSM.md

@@ -100,7 +100,7 @@ It is also highly advisable adding an SSH key to https://osm.etsi.org/gitlab/pro
 #### If the repository already exists in ETSI's Gitlab but not locally
 
 ```bash
-git clone git@osm.etsi.org:osm-doc/test.git
+git clone ssh://git@osm.etsi.org:29419/osm-doc/test.git
 ```
 
 **>>>>> TEMPORARY URL**:
@@ -217,5 +217,5 @@ git init
 Add the URL of the remote repository:
 
 ```bash
-git remote add origin git@osm.etsi.org:osm-doc/test.git
+git remote add origin ssh://git@osm.etsi.org:29419/osm-doc/test.git
 ```