Link documentation to "Specifying environment variables for actions" design doc.
Fix
MOS_MIGRATED_REVID=151116555
@@ -5,7 +5,7 @@ title: Specifying environment variables
# Specifying environment variables for actions
-**Status**: Implemented.
+**Status**: Implemented. See [documentation](/docs/skylark/lib/ctx.html#action)
**Author**: [Klaus Aehlig](mailto:aehlig@google.com)
