* Site improvements.
- For SVG images, authors no longer need to specify image ratios
(which is a constant source of errors)
- Move more icons into the new icons.svg file to further reduce
average page load times.
- Rationalize Istio logo file names.
- Improve underlining behavior for sidebar headers and the RSS feed
Subscribe link.
- Made the RSS feed subscribe link open in a new tab.
- Increase the constract ratio for some elements in dark mode
text blocks (namely, YAML field names)
- Reduce the "brightness" of the light bulb icon which helps it
not pop so much in dark mode.
- Optimize the fonts we load and the order we load them in so as to improve page load time and
reduce the initial render time.
* Sadly, embedding SVGs into the HTML results in duplicate element ids, which is invalid HTML :-(
- We now detect text blocks that are incorrectly indented.
- We now detect image captions that end in a period.
- We now detect page descriptions that don't end in a period.
- CircleCi now runs linting without minifying HTML first, improving perf and
improving error output.
- In CircleCi, we now have a per-build cache for HTML proofer output. This
helps reduce the frequency of link timeout errors.
- Fix errors flagged by the above new lint checks.
- 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.