Update README

tabatkins · tabatkins · commit 13b9f7b3e2e4 · 2015-01-15T16:29:51.000-08:00
diff --git a/README.markdown b/README.markdown
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 ### [CSS Working Group](http://www.w3.org/Style/CSS/) Specifications
 
-To download a copy of all specifications:
+This is the official CSSWG repository for editor's drafts of CSS specifications.
+
+This repository is a two-way mirror of a Mercurial repository:
 
         hg clone https://hg.csswg.org/drafts
 
