Render quotes as blockquotes instead of code blocks.

[TheOnlyTails]

This is not 100% done yet, I still want to make some changes to the styling and add some tests (as @IgnatBeresnev requested).
Blockquotes are being rendered though.
(this is my first PR to dokka, so please tell me if i'm doing something wrong without realizing it)

/**
* > Matches 0 or 1 of the preceding token, effectively making it optional.
*/ 

Closes #2491

[IgnatBeresnev]

Yeah, code-wise looks good so far, good job! Feel free to suggest alternative styling (css) for quotation if you wish, but this will also do

Also, since you've added some new public API (TextStyle.Quotation), you need to run ./gradlew apiDump in order to generate information for binary-compatibility-validator plugin, and commit it's changes as well

[TheOnlyTails]

I think it's ready!

[IgnatBeresnev]

Looking good!

You've corrected the tests that cover DocTag->Content conversion, but I'd also ask you to add tests that cover Content->Html rendering to make sure styles aren't lost. These can be added to TextStylesTest, there's plenty of examples.

For matchers I think you'll need to add a blockquote tag matcher to JsoupUtils.kt, you'll understand what I'm talking about when you get to these tests :)

After that I'll be happy to merge it

[IgnatBeresnev]

Oh, also, please run ./gradlew apiDump once again after applying changes, it'll add the blockquote matcher to the exposed API :)

[IgnatBeresnev]

Good job, thank you for the contribution! :)

[TheOnlyTails]

thank you very much! You were super helpful!