Also update the stateless image creation file to include
the NOTE for using a local file. I hit problems with genimage
when it's writing to the mounted NFS /install directory
- 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
'make clean' then 'make html' for the documentation. There are a lot
of formatting errors that are present
Also fixed some of the broken links. When pages are added and changed
the person working on it should check the build errors
1, `**sinv`** modified to **sinv**; there is no sinv command link now, so current it cannot link other place;
2, "checks the software and firmware configure in this cluster" to "checks the software and firmware inventory in this cluster"
