* Clean up of the platform section
This cleans up the platform section into its own subdirectory.
I am not all that happy about how "see-also" works, but maybe that
is how it is meant to work, or alternatively I'm doing it wrong :)
* Apply reviewer comments and add the index file
_index.md was missing from prior commit accidentally.
Removed all "Platform setup for" text in all platform docs.
* Apply reviewer comments
Some wordsmithing.
weight = 3 is intentional to fit alphabet. Assuming nobody
will require ASCIIbetical.
* Fix US English lint errors
* Revert the Chinese translation of the platforms PR
The Chinese language version needs to be ported. This PR
was merged manually which probably has broken the gate.
- Remove What's next sections since we now have auto-generated See also sections
- Fix a few incorrectly capitalized headers, "istio", "kubernetes", "sidecar"