update readme with instructions to pull a prebuilt image

README.md

@@ -7,6 +7,27 @@ Currently implemented:
 - overview page w/ live updating (refreshes every 5s)
 - list of device information
 
+## Running the app
+
+### Docker 
+
+The easiest way to setup and run the app with minimal development knowledge is to use [Docker](https://www.docker.com/get-started). 
+Follow the installation instructions from the website, and then run:
+
+```bash
+docker pull kclejeune/tmobile-isp-client:latest && docker run -p 3000:3000 -it kclejeune/tmobile-isp-client:latest
+```
+
+You can view the app on `http://localhost:3000`. To run on a different port, set the `PORT` environment variable 
+and pass it to the container with the following command:
+
+```bash
+export PORT=43210
+docker pull kclejeune/tmobile-isp-client:latest && docker run -e PORT -p $PORT:$PORT -it kclejeune/tmobile-isp-client:latest
+```
+
+substituting `PORT=43210` for the actual port of your choice.
+
 ## Developing
 
 Clone the project, install dependencies with `npm install` (or `pnpm install` or `yarn`), and then start a development server with:
@@ -18,7 +39,7 @@ npm run dev -- --host
 npm run dev -- --open
 ```
 
-## Building
+### Building
 
 This app uses the node adapter to enable server side rendering and reverse proxying to avoid CORS issues. Build for production with:
 
@@ -30,23 +51,6 @@ npm run build
 
 To run in production, run `node ./build`
 
-## Docker
-
-To run the containerized version of this app, build the docker
-image with
-
-```bash
-docker build --pull -t tmobile:latest .
-```
-
-and run the container with
-
-```bash
-docker run --rm -p 3000:3000 -it tmobile:latest
-```
-
-You can access the app on `localhost:3000`.
-
 ## Screenshots
 
 ### Desktop