Update doc. Add install info in ReadTheDoc

3 files changed, 45 insertions, 3 deletions

diff --git a/docs/gw/cassandra.rst b/docs/gw/cassandra.rst
index 2f514d1b..59700af9 100644
--- a/docs/gw/cassandra.rst
+++ b/docs/gw/cassandra.rst
@@ -1,6 +1,6 @@
 .. _cassandra:
 
-CASSANDRA
+Cassandra
 =========
 
 You can export statistics to an ``Cassandra`` or ``Scylla`` server.
@@ -30,3 +30,4 @@ The data model is the following:
     CREATE TABLE <table> (plugin text, time timeuuid, stat map<text,float>, PRIMARY KEY (plugin, time))
 
 Only numerical stats are stored in the Cassandra table. All the stats are converted to float.
+If a stat can not be converted to float, it is not stored in the database.
diff --git a/docs/index.rst b/docs/index.rst
index 54177786..b8796d6f 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -7,12 +7,16 @@ Glances is a cross-platform curses-based monitoring tool which aims to
 present a maximum of information in a minimum of space, ideally to fit
 in a classical 80x24 terminal or higher to have additional information.
 It can adapt dynamically the displayed information depending on the
-terminal size. It can also work in client/server mode. Remote monitoring
-could be done via terminal or web interface.
+terminal size.
+
+It can also work in client/server mode. Remote monitoring
+could be done via terminal or Web interface.
 
 Glances is written in Python and uses the `psutil`_ library to get
 information from your system.
 
+Stats can also be exported to external time/value databases.
+
 .. _psutil: https://github.com/giampaolo/psutil
 
 Table of Contents
@@ -21,6 +25,7 @@ Table of Contents
 .. toctree::
    :maxdepth: 2
 
+   install
    quickstart
    cmds
    config
diff --git a/docs/install.rst b/docs/install.rst
new file mode 100644
index 00000000..496d9f09
--- /dev/null
+++ b/docs/install.rst
@@ -0,0 +1,36 @@
+.. _install:
+
+Install
+=======
+
+Glances is on ``PyPI``. By using PyPI, you are sure to have the latest
+stable version.
+
+To install, simply use ``pip``:
+
+.. code-block:: console
+
+    pip install glances
+
+*Note*: Python headers are required to install `psutil`_. For example,
+on Debian/Ubuntu you need to install first the *python-dev* package.
+For Fedora/CentOS/RHEL install first *python-devel* package. For Windows,
+just install PsUtil from the binary installation file.
+
+You can also install the following libraries in order to use optional
+features (like the Web interface, exports modules, sensors...):
+
+.. code-block:: console
+
+    pip install bottle requests batinfo https://bitbucket.org/gleb_zhulik/py3sensors/get/tip.tar.gz zeroconf netifaces pymdstat influxdb elasticsearch potsdb statsd pystache docker-py pysnmp pika py-cpuinfo bernhard cassandra scandir
+
+To upgrade Glances to the latest version:
+
+.. code-block:: console
+
+    pip install --upgrade glances
+
+For additionnal installation methods, read the official `README`_ file.
+
+.. _psutil: https://github.com/giampaolo/psutil
+.. _README: https://github.com/nicolargo/glances/blob/master/README.rst