Update README.md

README.md

@@ -32,20 +32,48 @@ See PlayCanvas Web Components in action here: https://playcanvas.github.io/web-c
 
 ## Usage 🚧
 
+### Installing from NPM
+
 PlayCanvas Web Components is available as a package on [NPM](https://www.npmjs.com/package/@playcanvas/web-components). 
 You can install it (and the PlayCanvas Engine) as follows:
 
 ```bash
 npm install playcanvas @playcanvas/web-components --save-dev
 ```
 
-You can then use a bundler (such as Webpack or Rollup) to build your application. Or you can import the components as follows:
+Next, in your HTML file, you will need an import map because the web components need to be able to find the PlayCanvas Engine (which is an external dependency):
+
+```html
+        <script type="importmap">
+            {
+                "imports": {
+                    "playcanvas": "/node_modules/playcanvas/build/playcanvas.mjs"
+                }
+            }
+        </script>
+```
+
+Tou can then import the components as follows:
 
 ```html
 <script type="module" src="/node_modules/@playcanvas/web-components/dist/pwc.mjs"></script>
 ```
 
-Instead of loading the library from a local package, you can instead opt to load it from a CDN.
+### Using a CDN
+
+Instead of loading the library from a local package, you can instead opt to load it from a CDN (such as jsDelivr). In this case, you would update the import map:
+
+```html
+        <script type="importmap">
+            {
+                "imports": {
+                    "playcanvas": "https://cdn.jsdelivr.net/npm/[email protected]/build/playcanvas.mjs"
+                }
+            }
+        </script>
+```
+
+And the components would now be imported as follows:
 
 ```html
 <script type="module" src="https://cdn.jsdelivr.net/npm/@playcanvas/[email protected]/dist/pwc.mjs"></script>