Further minor update

docs/web/projects/access-to-project-space.md

 # Manage access
 
-Access is controlled (via the **Web interface**):
+Access in project spaces is controlled:
 
 * to the ENTIRE project via the `cernbox-project-<projectname>-writers` and `-readers` e-groups (you can check their membership at https://egroups.cern.ch).
 * to individual folders (and their sub-folders) via the Authenticated Share method in CERNBox (in a Web browser).