wrangler dev documentation should be clear that the Worker is being run remotely #10
Description
The documentation for wrangler dev implies that the "server on `localhost" is "execut[ing] your Worker": https://developers.cloudflare.com/workers/cli-wrangler/commands#dev
We should update this to be clear that the Worker code is uploaded to Cloudflare's API and the Worker is being invoked at the edge, as described in more detail here: https://blog.cloudflare.com/announcing-wrangler-dev-the-edge-on-localhost/ .
This causes confusion for users who expect that wrangler dev's local server can make requests to locally-running services that are not exposed to the Internet, among other issues.