Updated `Readme.md`.

Readme.md

 # Module `maglodeve`
 
+author: Mickaël Bonnin <mickael.bonnin@univ-nantes.fr>
+
+***
+
 This module, written in Python, aims at convienently inverting, from magnetic
-anomalies measured on the field, the geometrical parameters of a dyke, namely :
-    - its dip;
-    - its width;
-    - and its depth with respect to the sensor.
+anomalies measured on the field, the geometrical parameters of a dyke, namely:
++ its dip;
++ its width;
++ and its depth with respect to the sensor.
+
+## Installation:
+
++ untar the archive at the desired location.
++ enter the directory.
++ run `python3 -m pip install .` and `pip` will install all the librairies required.
+
+> Note that it is recommanded to deploy the programm within a python environment
+> (for instance using `conda`).
+> Then you will be sure that nothing will interfere with the python libraries
+> that are part of the OS.
+
+## To run the program:
 
++ the file that contains the measurements must have two or three columns.
+    The first column must be the distance, the second column must be the
+    anomaly (not the intensity of the magnetic field) and the third column (if
+    present) must be the standard deviation of the measurements.
+    The program supposes that the first line of the file is a header and, thus,
+    does not take it into account.
+    If there are more than one line of header, the program will raise and
+    exception.
++ run `ml_inversion latitude strike filename`.
+    There are several optional parameters to change, for instance, the bounds
+    of the inverted parameters or the plot the best model.
+    The list of the options can be access with `ml_inversion -h` or
+    `ml_inversion --help`.
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