* use kubectl consistently throughout for Istio API resource C.R.U.D operations
xref: https://github.com/istio/istio.github.io/issues/1843
* fix typo
* review comments
* remove unnecessary instructions to use `replace` instead of `create`
* fix linter in `zh` content
- Add <github_file> <github_blob> and <github_tree> to make it simpler to link to the right
place on GitHub.
- Use these new sequences throughout the docs.
- Also, fix bad HTML generated for the TOC in certain cirsumstances.
- Fix extra blank line inserted at the bottom of indented code blocks.
- Remove What's next sections since we now have auto-generated See also sections
- Fix a few incorrectly capitalized headers, "istio", "kubernetes", "sidecar"
Jason Young
mtail
Frank Budinsky
Will Witman
Martin Taillefer