Update contributing. Fixes Polymer#411

ebidel · ebidel · commit 7ab057c8a97c · 2014-05-19T13:01:34.000-07:00
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
@@ -1 +1 @@
-See https://github.com/Polymer/polymer-dev/blob/master/CONTRIBUTING.md
+See http://polymer.github.io/CONTRIBUTORS.txt

Original file line number	Diff line number	Diff line change
`@@ -1 +1 @@`
`1`		`-See https://github.com/Polymer/polymer-dev/blob/master/CONTRIBUTING.md`
	`1`	`+See http://polymer.github.io/CONTRIBUTORS.txt`