Home.md

+# CAXS Wiki home page
+## Synopsis
+CAXS stands for "Calculate Absorption Cross Sections". The software is capable of calculating the absorption cross 
+sections of any species over a wide range of wavenumbers. Individual species can be combined together (for example 
+using isotopic ratios). The cross sections can be calculated either using a pressure-temperature profile or a grid of
+pressures and temperatures.
+
+For the methane (CH4) species, lines data from [Rey et al. 2017](http://theorets.tsu.ru/molecules.ch4.hybrid) can be 
+used.
+
+## Motivation
+CAXS is meant to be easy to use and parametrize, and its outputs easily transportable. 
+It is written in Fortran, and should be easy to understand, maintain and modify.
+
+## Installation
+Visit the CAXS [installation instructions page](/dblain/pytheas/wikis/how-to-install).
+The installation process is also detailed in the *README*.
+
+## Getting started
+Learn how to use CAXS by following the tutorials on the [CAXS getting started page](/dblain/pytheas/wikis/getting-started).
+Instructions to setup and launch the software are also available in the *README*.
+
+## Documentation
+Details about CAXS can be found in the [CAXS documentation](/dblain/pytheas/wikis/documentation).
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