Some documentation update

docs/_sources/index.rst.txt

@@ -23,6 +23,17 @@ For quick start head to :ref:`modindex` and see :class:`pywindow.molecular.Molec
    :maxdepth: 2
    :caption: Contents:
 
+Installation
+------------
+
+Git clone the pywindow repository or download a zipped version.
+
+  .. code-block:: bash
+
+    cd pywindow/
+
+    python setup.py install
+
 Examples
 --------
 Loading input

docs/index.html

@@ -80,6 +80,7 @@
               <div class="local-toc"><ul>
 <li><a class="reference internal" href="#">Welcome to <code class="docutils literal notranslate"><span class="pre">pywindow</span></code>’s documentation!</a><ul>
 <li><a class="reference internal" href="#overview">Overview</a></li>
+<li><a class="reference internal" href="#installation">Installation</a></li>
 <li><a class="reference internal" href="#examples">Examples</a><ul>
 <li><a class="reference internal" href="#loading-input">Loading input</a></li>
 <li><a class="reference internal" href="#pre-processing">Pre-processing</a></li>
@@ -166,6 +167,17 @@ <h2>Overview<a class="headerlink" href="#overview" title="Permalink to this head
 <div class="toctree-wrapper compound">
 </div>
 </div>
+<div class="section" id="installation">
+<h2>Installation<a class="headerlink" href="#installation" title="Permalink to this headline">¶</a></h2>
+<p>Git clone the pywindow repository or download a zipped version.</p>
+<blockquote>
+<div><div class="highlight-bash notranslate"><div class="highlight"><pre><span></span><span class="nb">cd</span> pywindow/
+
+python setup.py install
+</pre></div>
+</div>
+</div></blockquote>
+</div>
 <div class="section" id="examples">
 <h2>Examples<a class="headerlink" href="#examples" title="Permalink to this headline">¶</a></h2>
 <div class="section" id="loading-input">