add deprecation warning for external urls

a985029e · Timothée Peignier · fcf2c365 · a985029e
Commit a985029e authored Dec 06, 2011 by Timothée Peignier
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docs/configuration.rst
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@@ -286,6 +286,10 @@ In resulting CSS it will be rewritten to ::
 External urls
 =============

+.. warning::
+
+    This feature is currently deprecated and will be remove in next major version of pipeline.
+
 While Pipeline does a great job of minimizing the amount of http requests
 on your site (hence increasing performance) there are sometimes cases when you
 want to include external files as well. Let's take an example::