docs: Update yelp documentation to reflect what it is actually doing
@@ -321,8 +321,8 @@ VAPI or Vala binaries.
languages: []string, symlink_media: bool = true): void
```
-Installs help documentation using Yelp. The first argument is the
-project id.
+Installs help documentation for Yelp using itstool and gettext. The first
+argument is the project id.
Additionally, sources can be passed as additional positional arguments. This
was, however, undocumented and never officially supported. Due to a longstanding
