RFR: JDK-8177389: Hyphen "-" should be removed in URL class documentation

[Jaikiran Pai]

Can I please get a review and a sponsor for the patch for
https://bugs.openjdk.java.net/browse/JDK-8177389. The patch is available
as a webrev at http://cr.openjdk.java.net/~jpai/webrev/8177389/1/webrev/.

The change that's asked for, in that JBS, is actually trivial. While I
was at it, I also changed the blockquote section into a (unordered list)
ul section, to list the protocols. I hope that's OK.


-Jaikiran