Merge branch 'docs-aqualls-add-project-api-limit' into 'master'

Improve visibility of size limit enforcement

See merge request gitlab-org/gitlab!63459

doc/api/projects.md

@@ -2046,7 +2046,8 @@ POST /projects/:id/restore
 ## Upload a file
 
 Uploads a file to the specified project to be used in an issue or merge request
-description, or a comment.
+description, or a comment. GitLab versions 14.0 and later
+[enforce](#max-attachment-size-enforcement) this limit.
 
 ```plaintext
 POST /projects/:id/uploads