Adds #701 release notes.

Author: jakubpawlowicz

History.md

@@ -3,6 +3,7 @@
 
 * Fixed issue [#695](https://github.com/jakubpawlowicz/clean-css/issues/695) - shorthand overriding edge case.
 * Fixed issue [#699](https://github.com/jakubpawlowicz/clean-css/issues/699) - IE9 transparent hack.
+* Fixed issue [#701](https://github.com/jakubpawlowicz/clean-css/issues/701) - `url` quoting with hash arguments.
 
 [3.4.6 / 2015-10-14](https://github.com/jakubpawlowicz/clean-css/compare/v3.4.5...v3.4.6)
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