Document structure better

Closes #1648

src/node/app/README.md

@@ -1,63 +0,0 @@
-# app
-
-Implementation of [VS Code](https://code.visualstudio.com/) remote/web for use
-in `code-server`.
-
-## Docker
-
-To debug Golang in VS Code using the
-[ms-vscode-go extension](https://marketplace.visualstudio.com/items?itemName=ms-vscode.Go),
-you need to add `--security-opt seccomp=unconfined` to your `docker run`
-arguments when launching code-server with Docker. See
-[#725](https://github.com/cdr/code-server/issues/725) for details.
-
-## Known Issues
-
-- Creating custom VS Code extensions and debugging them doesn't work.
-- Extension profiling and tips are currently disabled.
-
-## Extensions
-
-`code-server` does not provide access to the official
-[Visual Studio Marketplace](https://marketplace.visualstudio.com/vscode). Instead,
-Coder has created a custom extension marketplace that we manage for open-source
-extensions. If you want to use an extension with code-server that we do not have
-in our marketplace please look for a release in the extension’s repository,
-contact us to see if we have one in the works or, if you build an extension
-locally from open source, you can copy it to the `extensions` folder. If you
-build one locally from open-source please contribute it to the project and let
-us know so we can give you props! If you have your own custom marketplace, it is
-possible to point code-server to it by setting the `SERVICE_URL` and `ITEM_URL`
-environment variables.
-
-## Development: upgrading VS Code
-
-We patch VS Code to provide and fix some functionality. As the web portion of VS
-Code matures, we'll be able to shrink and maybe even entirely eliminate our
-patch. In the meantime, however, upgrading the VS Code version requires ensuring
-that the patch still applies and has the intended effects.
-
-If functionality doesn't depend on code from VS Code then it should be moved
-into code-server otherwise it should be in the patch.
-
-To generate a new patch, **stage all the changes** you want to be included in
-the patch in the VS Code source, then run `yarn vscode:diff` in this
-directory.
-
-Notable changes include:
-
-- Add our own build file which includes our code and VS Code's web code.
-- Allow multiple extension directories (both user and built-in).
-- Modify the loader, websocket, webview, service worker, and asset requests to
-  use the URL of the page as a base (and TLS if necessary for the websocket).
-- Send client-side telemetry through the server.
-- Make changing the display language work.
-- Make it possible for us to load code on the client.
-- Make extensions work in the browser.
-- Make it possible to install extensions of any kind.
-- Fix getting permanently disconnected when you sleep or hibernate for a while.
-- Add connection type to web socket query parameters.
-
-## Future
-
-- Run VS Code unit tests against our builds to ensure features work as expected.