DOCSP-1839 Charts Landing Page (#3)

* DOCSP-1839 - Charts landing page

* DOCSP-1839 - Charts landing page - Updates per Tom's feedback pt 2

DOCSP-1839 - Charts landing page - Updates per Tom's feedback pt 2

Author: jeff-allen-mongo

.gitignore

@@ -8,4 +8,4 @@ build/*
 *.bak
 .DS_Store
 giza.log
-screenshots-temp/*
+screenshots-temp/*

source/images/charts/charts-dashboard.png

@@ -1,19 +1,91 @@
-======
-Charts
-======
+==============
+MongoDB Charts
+==============
 
 .. default-domain:: mongodb
 
-Welcome to the Charts documentation.
+Introduction
+------------
 
-Until the confusing drop down goes away, see
-`Vega-Lite Types <https://vega.github.io/vega-lite/docs/type.html>`_.
+MongoDB Charts is a tool to create visual representations of
+your MongoDB data. Data visualization is a key component to providing a
+clear understanding of your data, highlighting correlations between
+variables and making it easy to discern patterns and trends within your
+dataset. You can use MongoDB Charts to visualize data both in the form
+of graphical charts and in tabular formats.
 
-.. class:: hidden
+MongoDB Charts also makes communicating your data a straightforward
+process by providing built-in tools to easily share your data across
+a variety of platforms.
 
-   .. toctree::
-      :titlesonly:
+MongoDB Charts Features
+-----------------------
 
-      /installation
-      /dashboards
-      /data-sources
+One of the most powerful features of MongoDB Charts is its built-in
+:manual:`aggregation </aggregation>` functionality. Aggregation allows
+you to process your collection data by a variety of metrics and perform
+calculations such as mean and standard deviation to provide further
+insight into your data.
+
+Further, MongoDB Charts is able to handle document-based data,
+including nested documents and arrays. This gives you the flexibility
+of structuring data how it fits best for your application while
+still retaining powerful visualization capabilities.
+
+MongoDB Charts Concepts
+-----------------------
+
+The following elements of MongoDB Charts provide the flow of data
+from its source to a visual representation:
+
+.. list-table::
+   :header-rows: 1
+   :widths: 20 80
+
+   * - Element
+     - Description
+
+   * - Data Source
+     - A reference to a MongoDB collection which contains the data you
+       wish to visualize. Note that deleting a data source has no
+       effect on the underlying MongoDB collection. For information on
+       connecting to and managing a data source, see
+       :doc:`Managing Data Sources <managing-data-sources>`.
+
+   * - Chart
+     - A visualization which maps to a *single* data source.
+
+   * - Dashboard
+     - A group of one or more charts.
+
+Dashboards are the cornerstone of MongoDB Charts as they are
+where you create and view your data visualizations. For details
+on how to create, manage, and share dashboards, see
+:doc:`Managing Dashboards <managing-dashboards>`.
+
+.. note::
+
+   Since a chart can only display data from a single collection,
+   dashboards which combine multiple charts are not only useful, but
+   necessary for visualizing data from multiple collections in a single
+   view. This can lead to new insights into your data which may not be
+   immediately apparent.
+
+.. example::
+
+   The following dashboard contains two charts, each with distinct
+   focal points into a collection containing movie data:
+
+   .. figure:: /images/charts/charts-dashboard.png
+      :figwidth: 721px
+      :lightbox:
+      :alt: Sample Charts dashboard
+
+  .. class:: hidden
+
+     .. toctree::
+        :titlesonly:
+
+        /installation
+        /dashboards
+        /data-sources