Add more description to what is not straightfoward

doc/development/documentation/styleguide.md

@@ -750,7 +750,8 @@ _Internal_ refers to documentation in the same project. When linking to document
 separate projects (for example, linking to Omnibus docs from GitLab docs), you must use absolute
 URLs.
 
-Linking to other documentation content is not as straightforward as we'd like.
+Linking to internal documentation content is not as straightforward as we'd like.
+For example, not using relative to root links or `.html` extensions can make it difficult to determine the link you'd like to refer to. 
 However, in order to XYZ we established the following style requirements.
 
 To link to internal documentation: