* No content in the switches subdirectory in docs, remove
* Change the Network topic to Networking
* Refine and reformat the Cumulus Linux documentation
- categorize into topics without "xCAT" in the heading
since the topics are all related to xCAT
- Alphabetize the topics to make it easier to find
- create sub directories for the topics to contain
the documentation
- broke down some of the docs to multiple files to help
ease of readability