remove TODO about how vs when IQSS#10531

doc/sphinx-guides/source/contributor/documentation.md

@@ -154,8 +154,6 @@ A good documentation is just like a website enhanced and upgraded by adding high
 
 While PNGs in the git repo can be linked directly via URL, Sphinx-generated images do not need a manual step and might provide higher visual quality. Especially in terms of quality of content, generated images can be extendend and improved by a textbased and reviewable commit, without needing raw data or source files and no diff around.
 
-TODO: The above covers "how" but what about "when"?
-
 ### Cross References
 
 When adding ReStructured Text (.rst) [cross references](https://www.sphinx-doc.org/en/master/usage/restructuredtext/roles.html#ref-role), use the hyphen character (`-`) as the word separator for the cross reference label. For example, `my-reference-label` would be the preferred label for a cross reference as opposed to, for example, `my_reference_label`.