Add a bit of an overview to the documemtation

Signed-off-by: Christophe de Dinechin <christophe@dinechin.org>
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Christophe de Dinechin 2022-10-26 23:16:17 +02:00
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# Overview
## DB48X on DM42
The DB48X project intends to rebuild and improve the user experience of the
legendary HP48 family of calculators, notably their "_Reverse Polish Lisp_" (RPL)
language with its rich set of data types and built-in functions.
This project is presently targeting the *SwissMicro DM42 calculator*
and leveraging its built-in software platform, known as *DMCP*. This is
presumably the calculator you are currently running this software on.
## State of the project
This is currently **UNSTABLE** software. Please only consider installing this if
you are a developer and interested in contributing. Please refer to the web site
of the project on GitHub for details and updates.
# Negate
This is a proxy for the `NEG` function. We are simply testing that we can
display help correctly. This is _italics_. This is *italics too*. This is
This help topic is a proxy for the `NEG` function. We are simply testing that we
can display help correctly. This is _italics_. This is *italics too*. This is
**bold**. This is __bold too__. Here is a backtick: ``. Does that work?
## Main menus in DB48X
Here are the main menus in DB48X, in alphabetical order.