added api references

Author: osharaf-mdb

source/frameworks/react/api-reference.txt

@@ -0,0 +1,13 @@
+.. _sdks-react-api-reference:
+
+===================================
+API Reference
+===================================
+
+.. toctree::
+   :titlesonly:
+
+   JavaScript SDK Reference (@realm) <https://www.mongodb.com/docs/realm-sdks/js/latest/>
+   RealmProvider (@realm/react) </frameworks/react/api-reference/realm-provider>
+   AppProvider (@realm/react) </frameworks/react/api-reference/app-provider>
+   UserProvider (@realm/react) </frameworks/react/api-reference/user-provider>