Added new URL in Gitlab of reference EUAG WP

Workflow for documentation production in OSM.md

@@ -316,6 +316,12 @@ It is highly advisable that the editor provides a base file structure for the do
 
 TODO: Create a sample template with all recommendations above, so that it can be easily reused by new editors. Meanwhile, the [EUAG whitepaper on OSM scope](https://osm.etsi.org/images/OSM_EUAG_White_Paper_OSM_Scope_and_Functionality.pdf) can be used as reference and adapted with no much effort. Source files can be obtained by cloning the repository:
 
+```bash
+git clone ssh://git@osm.etsi.org:29419/osm-euag/osm-scope-white-paper.git
+```
+
+Or, alternatively, from regular OSM repos:
+
 ```bash
 git clone https://osm.etsi.org/gerrit/osm/DOC.git
 ```