Improved the documentation index with some important information.

Author: StuntsPT

docs/index.md

@@ -1,20 +1,26 @@
 # *Structure_threader*
 
 ## Description
+
 A program to parallelize and automate the runs of [Structure](http://pritchardlab.stanford.edu/structure.html) and [fastStructure](https://rajanil.github.io/fastStructure/) software.
 
 
 ## Requirements
+
 Python 3. The main program only uses modules from the standard library.
 In order to draw the plots, matplotlib >= 1.4 is required.
 To run "fastChooseK.py" (fastStructure wrapper only), numpy is also required.
 
 
 ## Where to get it
+
 * Source code - [Structure_threader on github](https://github.com/StuntsPT/Structure_threader)
+* Binary distribution - [Sturcture_threader on Pypi](https://pypi.python.org/pypi/structure_threader/)
+    * You can install this version easily by issuing the command `pip3 install structure_threader`
 
 
 ## Contents
+
 * [Installation & dependencies](install.md)
     * [Binary building](binaries.md)
 * [Usage](usage.md)
@@ -27,15 +33,18 @@ To run "fastChooseK.py" (fastStructure wrapper only), numpy is also required.
 
 
 ## Other works
+
 The script "fastChooseK.py" was taken from [the original fastStructure repository](https://github.com/rajanil/fastStructure), ported to python 3, largely modified to work as a module for the main script and relicensed as GPLv3.
 
 The scripts "harvesterCore.py" and "structureHarvester.py" were taken from [the original structureHarverster repository](https://github.com/dentearl/structureHarvester), ported to python 3, and slightly modified to work as a module for the main script. Please see the "Citation" part of the README to know what to cite, should you use this module.
 
 
 ## Bug reporting
+
 Found a bug or would like a feature added? Or maybe drop some feedback?
 Just [open a new issue](https://github.com/StuntsPT/Structure_threader/issues/new).
 
 
 ## License
+
 GPLv3