* Changes. to metadata in Manage users
* changes to install section
* Added titile
* More changes.
* Updated administration folder metadata, moved 2 files from installation folder.
* Added links to Administration landing page, other metadata changes worked out.
* Updated alerting section metadata.
* Updated metadata of Auth section. Broke index and created separate Grafana Authentication section.
* Added correct weight.
* Updated metadata for the Best practices section.
* Updated metadata in templates, broke Overview topic.
* Updated subment Variable types metadata
* Fixed yaml file and H1 description of Variables syntax topic.
* Couple more metadata changes.
* Added aliases files, as suggested by Diana.
