[css-values] Update DoC - close issue 1

Author: fantasai

css-values/issues-cr-2015.bsi

@@ -6,7 +6,7 @@ Issue 1.
 Summary:  Clarify that directional <angle>s must be bearing angles
 From:     Tab Atkins
 Comment:  https://hg.csswg.org/drafts/rev/98da29d1dabb
-Open:     Accepted
+Closed:   Accepted
 Verified: reporter is editor
 Resolved: https://lists.w3.org/Archives/Public/www-style/2016Feb/0183.html
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