Merge branch 'footnote-line-fix' into 'master'

Fix long markdown line in footnotes

See merge request gitlab-org/gitlab!23092

doc/user/markdown.md

@@ -786,7 +786,9 @@ A footnote reference tag looks like this:[^1]
 
 Reference tags can use letters and other characters.[^footnote-note]
 
-[^footnote-note]: Avoid using lowercase `w` or an underscore (`_`) in your tag name until until an [upstream bug](https://gitlab.com/gitlab-org/gitlab/issues/24423) is resolved.
+[^footnote-note]: Avoid using lowercase `w` or an underscore (`_`)
+in your footnote tag name until an
+[upstream bug](https://gitlab.com/gitlab-org/gitlab/issues/24423) is resolved.
 ```
 
 A footnote reference tag looks like this:[^1]
@@ -795,7 +797,9 @@ A footnote reference tag looks like this:[^1]
 
 Reference tags can use letters and other characters.[^footnote-note]
 
-[^footnote-note]: Avoid using lowercase `w` or an underscore (`_`) in your tag name until until an [upstream bug](https://gitlab.com/gitlab-org/gitlab/issues/24423) is resolved.
+[^footnote-note]: Avoid using lowercase `w` or an underscore (`_`)
+in your footnote tag name until an
+[upstream bug](https://gitlab.com/gitlab-org/gitlab/issues/24423) is resolved.
 
 ### Headers