Hello,
I'm mostly active in the Java forums these days, and often I find the desire to link to a method in the Java API, but the markdown syntax doesn't seem to handle the URL format quite well.
Here's an example of a URL that I was recently trying to link to:
http://docs.oracle.com/javase/6/docs/api/java/util/Arrays.html#asList(T...)
I guess you can easily notice that it breaks a valid URL.