Document quote-selection-markdown

Author: mislav

README.md

@@ -38,7 +38,8 @@ The optional `scopeSelector` parameter ensures that even if the user selection b
 
 ## Events
 
-A `quote-selection` event is fired on the quote region before text is appended to a textarea. Listen to the event to prepare the textarea or manipulate the selection text.
+* `quote-selection-markdown` (bubbles: true, cancelable: false) - fired on the quote region to optionally inject custom syntax into the `fragment` element in `quoteMarkdown: true` mode
+* `quote-selection` (bubbles: true, cancelable: true) - fired on the quote region before text is appended to a textarea
 
 For example, reveal a textarea so it can be found: