httplite: update readme.

git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@1214807 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/httplite/minimum/README b/httplite/minimum/README
index 75ccd1e..46e39c8 100644
--- a/httplite/minimum/README
+++ b/httplite/minimum/README
@@ -1 +1,3 @@
 httplite is a minimal implementation of the OSGi HTTP Service specification.  It supports a subset of the features found in the bridge and jetty HTTP Service implementations.  See https://issues.apache.org/jira/browse/FELIX-538 for more details.
+
+This is the 'minimum' target which at runtime, requires the OSGi Compedium HTTP Service and Servlet API classes to be provided by external bundles.
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