Use gish to generate a web application

[drorm]

This is a specific case of #10.
GPT4 is capable of generating web application that include HTML, CSS and javascript enclosing each portion in ```.
In general, it seems to have the inclination to include these even when not asked to.

You can ask it to generate a file like this (because of the markdown in the file, can't include it inline):
example.txt

So in effect, we could, with a simple gish request, generate a full web application.
Generate the files in a directory, and for extra points, we can launch a local server, and the app is right there in the user's browser :-).

For a standard web app it could be

• ```index.html
• ```styles.css
• ```index.js
• ``` README.md -- optional for any comments.

For this initial version use regex to parse the file, but for future versions, consider using https://github.com/pegjs/pegjs.
The advantage of going in that direction is that

1. It is more robust.
2. It can give us a definitive answer whether GPT's response is compliant: it only has files enclosed in ```.

[drorm]

See the Web app example