Blockquote levels #41
Description
The blockquote render is usually more than sufficient for the general use-case:
SundownRenderBase::blockQuote(string $quote)
However, it is missing some vital information regarding the blockquote level. For example it might be desirable to render each of the following differently:
> Level 1
>> Level 2
>>> Level 3
Would it be possible to extend the function signature to:
SundownRenderBase::blockQuote(string $quote, int $blockquote_level)
Making it optional will still not break backward compatibility while exposing this for use.