Updated sidebar documentation to clarify nesting (#626)
Updated sidebar documentation to clarify nesting (#626)

The documentation for how to create nested sidebars was unclear, and I could not find it anywhere else. After experimenting, I discovered the tactic and felt it should be in the docs.
nsina/docsify,QingWei-Li/docsify,QingWei-Li/docsify,nsina/docsify,QingWei-Li/docsify,nsina/docsify