[readme][s]: update reamde about how to use css chunk if you are impo…

…rting a component

README.md

@@ -23,7 +23,20 @@ It would:
 
 Next, you need to update the template to include correct bundles. In `/templates/datapub/snippets/upload_module.html`, edit the file names of the modules.
 
-Note, if you are developing a React app, e.g., custom `datapub` app, you can use the following attributes passed from the `/templates/datapub/snippets/upload_module.html`:
+**Note:**
+
+- If you are importing a component from the datapub library, when running `yarn build` will generate two CSS files. Both of these CSS files should be added In `/templates/datapub/snippets/upload_module.html` be able to render external components imported.
+
+e.g.
+```
+{% resource 'datapub/css/2.13e0d705.chunk.css' %}
+{% resource 'datapub/css/main.c6297111.chunk.css' %}
+{% resource 'datapub/js/runtime-main.95a62798.js' %}
+{% resource 'datapub/js/2.bfcaf294.chunk.js' %}
+{% resource 'datapub/js/main.d1dbf6f8.chunk.js' %}
+```
+
+- if you are developing a React app, e.g., custom `datapub` app, you can use the following attributes passed from the `/templates/datapub/snippets/upload_module.html`:
 
 ```html
 <div id="ResourceEditor"