CORD-1813 Add migration guide to developer section
Change-Id: I5687a99b66ac8a2e93a0f7794289205a8205a16c
diff --git a/docs/SUMMARY.md b/docs/SUMMARY.md
index 9944b2a..d2dc89d 100644
--- a/docs/SUMMARY.md
+++ b/docs/SUMMARY.md
@@ -32,6 +32,7 @@
* [GUI Internals](xos-gui/architecture/README.md)
* [Module Strucure](xos-gui/architecture/gui-modules.md)
* [Data Sources](xos-gui/architecture/data-sources.md)
+ * [Migrating Services from cord-3.0 to cord-4.0](xos/migrate-4.0.md)
* [Testing CORD](test/README.md)
* [Running Tests](test/running.md)
* [List of Tests](test/testcases-listings.md)