Github user corneadoug commented on the issue:
https://github.com/apache/zeppelin/pull/1356
@Leemoonsoo I made both general.html and webapplication.html appear on the
sideMenu.
For the size issue, I think the best would be to simply have the
documentation max-width bigger (1024px instead of ~960px), I didn't push the
CSS yet but the screenshot below have it.
If you Compare with the screenshots of the PR description, it gives more
space to the content


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