docs: add note how to run iOS app

example/ios/README.md

@@ -0,0 +1,16 @@
+# Setup
+
+To compile the model you need to execute the following command:
+
+```bash
+mlc_llm package
+```
+
+> [!NOTE]
+> To setup `mlc_llm` read the [official documentation](https://llm.mlc.ai/docs/install/mlc_llm.html#install-mlc-packages)
+
+This will generate necessary binaries and model itself in the `build` & `dist` directories.
+
+Then model is added to XCode project under `bundle/` directory which then is used by the module. 
+
+In the future, we will automate this process, so when the model is not found under the bundle/ directory, it will be downloaded from HuggingFace in the runtime.