Updates the docs to work with the website repo - mainly
relative link updates.
Adds a menu.yaml file to build the sidebar menu (no longer
using front matter weight).
* docs: Link to SAML docs and document configuration options
- Document configuration options `defaults.ini` and `sample.ini`
- Add the SAML documentation
- Link to the SAML documentation from "what's new in 6.3"
* Docs: First draft of whats new in 6.3
* Docs: Updated whats new article
* Docs: typos
* docs: fix broken link, add links and update docs index
* Docs: whats new in enterprise
