diff --git a/README.md b/README.md
index 6ecf66c26e073534638ecd8c1e5ee512a51d2b9d..5491b2f63326dbb60daa4548e5829f688e60817c 100644
--- a/README.md
+++ b/README.md
@@ -19,9 +19,14 @@ npm install
    * **Collections**: `http://localhost:port/collections`
    * **Collections with bbox filter**: `http://localhost:port/collections?bbox=minx,miny,maxx,maxy`
 
-### Adding Collection
+### Adding Collection Contents
 * Add contents to `3DGeoVolumes\collections\collections.json` 
 * Add contents to `3DGeoVolumes\collections\:collectionId\collectionId.json` (The automated script could be added here in future.)
+* In this version, Express Routing has to be manually adjusted in some cases
+  * Collection Children
+  * i3s (Redirecting to ArcGIS portal)
+  * i3s (Local Scene)
+  * gltf 
 
 ### Configuration
 * Port can be adjusted in the `server.js` file.