Update readme

README.md

@@ -37,16 +37,15 @@ For local usage and debugging, please follow these instructions:
 
 0. Make sure [Git LFS](https://git-lfs.github.com) is installed.
 
-1. Checkout the [`master`](../../tree/master) branch
+1. Checkout the [`main`](../../tree/main) branch
 
-2. Pull the submodules for the required [glTF sample models](https://github.com/KhronosGroup/glTF-Sample-Models) and [environments](https://github.com/KhronosGroup/glTF-Sample-Environments) `git submodule update  --init --recursive`
+2. Pull the submodule for the required [glTF-Sample-Renderer](https://github.com/KhronosGroup/glTF-Sample-Renderer)  `git submodule update  --init --recursive`
 
 3. Build the web app
-	- `cd app_web`
 	- run `npm install`
 	- start a demo in the browser with `npm run dev`, and open http://localhost:8000.
 
-When making changes, the project is automatically rebuilt and the `app_web/dist/` directory is populated with the web app. This directory contains all files necessary for deployment to a webserver.
+When making changes, the project is automatically rebuilt and the `./dist` directory is populated with the web app. This directory contains all files necessary for deployment to a webserver.
 
 Debugging
 ---------
@@ -56,7 +55,7 @@ Debugging
   * [Chrome](https://www.google.com/chrome/) or [Firefox](https://www.mozilla.org/en-US/firefox/new/)
 * Install the [Debugger for Chrome](https://marketplace.visualstudio.com/items?itemName=msjsdiag.debugger-for-chrome) or [Debugger for Firefox](https://marketplace.visualstudio.com/items?itemName=hbenl.vscode-firefox-debug) extension for Visual Studio Code
 * Open the project directory in Visual Studio Code and select `Debug->Add Configuration->Chrome` or `Debug->Add Configuration->Firefox` so the `.vscode/launch.json` file is created.
-* Append `/app_web/dist` to `${workspaceFolder}` in the `launch.json` file
+* Append `/dist` to `${workspaceFolder}` in the `launch.json` file
 * `Debug->Start Debugging` should now launch a Chrome or Firefox window with the sample viewer and VS Code breakpoints should be hit.
 
 ### Known Issues