add documentation link
diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,3 +1,5 @@
 # Apache Sling Context-Aware Configuration SPI
 
 This module is part of the [Apache Sling](https://sling.apache.org) project.
+
+Documentation: [Apache Sling Context-Aware Configuration](https://sling.apache.org/documentation/bundles/context-aware-configuration/context-aware-configuration.html)