Include a source code styling section in the style guide for docs,
indicating to follow the Angular style guide where possible and
defining hexidecimal style guidance.
Closes#23691
PR Close#42227
After the changes to the `lang-none` styling in #41335, code snippets marked with
```
language="none" class="code-shell"
```
were being styled with the same foreground and background colours.
It turns out that most of these ought to be marked `language="sh"`
in which case the `code-shell` style became redundant and has been
removed.
Fixes#41984
PR Close#41986
This commit updates the documentation style guide
so that it is in line with current standards, those
of Google as well as those within the Angular docs.
PR Close#36281
Reference #33259
Removes figures elements as AIO is not typically using captions or image groups where figures would be necessary or appropriate
PR Close#33748
Previously, `linenums` defaulted to true if the content was more than 10
lines long and false otherwise.
Since in most cases linenums add unnecessary visual noise, this commit
changes `linenums` to always default to false (regardless of the size of
the content). It can be still be turned on by explicitly setting to true
or a number.
PR Close#31674
- tells reader about `yarn serve-and-sync`.
- directs reader to look to docs-style-guide if get doc build error.
- update docs-style-guide to warn about ignored code files.
PR Close#19276
