* 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.