message: Add Cloudflare tunnel setup for mobile to the README
diff: @@ -77,6 +77,36 @@ resolver #8
  You may need to specifically type the full url in Safari: `http://someone.card.xyz.localhost:4210`.
  +### Viewing the locally served app on a mobile device
  +
  +To connect a wallet using WalletConnect on a mobile device, a https connection is needed, otherwise connecting a wallet will fail.
  +
  +To get around that, we recommend setting up a tunnel, for
  +example a [Cloudflare tunnel](https://developers.cloudflare.com/cloudflare-one/connections/connect-apps/install-and-setup/tunnel-guide/) which exposes your locally served app via a secure tunnel. If you need to view the locally served app on your mobile often, it makes sense to use long-lived urls, which you can configure using your own subdomains which you set up within your DNS provider.
  +
  +Your `config.yml` should look like this (replace the hostnames with your own):
  +
  +```yml
  +tunnel: <Tunnel-UUID>
  +credentials-file: .cloudflared/<Tunnel-UUID>.json // depends on your cloudflared installation path
  +
  +ingress:
  + - hostname: cardstack-hub-develop.your-domain.com
  + service: http://localhost:3000
  + - hostname: cardstack-ssr-web-develop.your-domain.com
  + service: http://localhost:4210
  + - hostname: cardstack-web-client-develop.your-domain.com # If you work on web-client too
  + service: http://localhost:4200
  + - service: http_status:404
  +```
  +
  +Follow the [instructions](https://developers.cloudflare.com/cloudflare-one/connections/connect-apps/install-and-setup/tunnel-guide/) on how to create CNAME records for your development
  +subdomains, and run the tunnel. After your tunnel is running, run the app with the following command (make sure to change the value of `HUB_URL`):
  +
  +`HUB_URL="https://cardstack-hub-develop.your-domain.com" ember s`
  +
  +Then, you can access your locally served app on your mobile device using `https://cardstack-ssr-web-develop.your-domain.com`.
  +
  ### Running Tests
  * `ember test`
  