Update README.md

See merge request !1

Closes https://github.com/yuvipanda/jupyter-desktop-server/issues/25

Fix permissions on ~/.cache

Add binder-badge.yaml

https://mybinder.readthedocs.io/en/latest/howto/gh-actions-badges.html

`apt-get install xorg` somehow results in a `/home/jovyan/.cache` directory being created and owned by `root`, maybe because `HOME` is set to `/home/jovyan`? This prevents the `jovyan` user running other programs such as Firefox:

```
$ podman build -t jupyter-desktop-server .
...

$ podman run --rm jupyter-desktop-server ls -la
total 40
drwxrwxr-x. 7 jovyan users 4096 Aug 16 17:04 .
drwxr-xr-x. 3 root   root  4096 Aug 16 17:04 ..
-rw-rw-r--. 1 jovyan users  220 Feb 25 12:03 .bash_logout
-rw-rw-r--. 1 jovyan users 3770 Jun 18 03:05 .bashrc
drwx------. 2 root   root  4096 Aug 16 17:02 .cache
drwxrwxr-x. 2 jovyan users 4096 Aug 16 17:04 .conda
drwsrws---. 3 jovyan users 4096 Jun 18 03:10 .config
drwsrws---. 2 jovyan users 4096 Jun 18 03:10 .jupyter
-rw-rw-r--. 1 jovyan users  807 Feb 25 12:03 .profile
drwsrwsr-x. 2 jovyan users 4096 Jun 18 03:05 work

```

Note `fix-permissions $HOME` only makes it group writeable, it doesn't fix the owner which is why I'm using `chown` instead.
```
drwxrwxr-x. 7 jovyan users 4096 Aug 16 17:08 .
drwxr-xr-x. 3 root   root  4096 Aug 16 17:08 ..
-rw-rw-r--. 1 jovyan users  220 Feb 25 12:03 .bash_logout
-rw-rw-r--. 1 jovyan users 3770 Jun 18 03:05 .bashrc
drwxrwx---. 3 root   users 4096 Aug 16 17:08 .cache
drwxrwxr-x. 2 jovyan users 4096 Aug 16 17:08 .conda
drwsrws---. 3 jovyan users 4096 Jun 18 03:10 .config
drwsrws---. 2 jovyan users 4096 Jun 18 03:10 .jupyter
-rw-rw-r--. 1 jovyan users  807 Feb 25 12:03 .profile
drwsrwsr-x. 2 jovyan users 4096 Jun 18 03:05 work
```

Start session from $HOME

Otherwise the user will start in noVNC directory when they open a terminal
(or any other application that inherits the cwd from the session)

By default in 1.4.0, jupyter-server-proxy opens new
applications in an iframe. I don't think this should be the
default for most applications
(https://github.com/jupyterhub/jupyter-server-proxy/pull/198),
but regardless it is very nice to be explicit

Removes the server extension, so the HTML for the interface
*is* served by websockify itself. This is a fix for
https://github.com/yuvipanda/jupyter-desktop-server/issues/10
This reverts commit 18d7fb7b.

A mess of a commit, should have been several.

- Finish renaming package from jupyter_desktop to
  jupyter_desktop_server
- Revert 360f9b04. Looks like
  websockify gets super confused when you put shell in the middle
  of it and the process it is spawning.
- Add a server extension that renders a slightly modified copy
  of vnc_lite.html as /desktop. This will be modified more and more
  as we go forward. This also helps us remove the mapping present
  in the jupyter server proxy entry

- jupyter-desktop sounds like a desktop installation of
  Jupyter
- This matches the package name

We made a release!