Added documentation

Author: akshar-raaj

demo_project/demo/templates/demo/flot.html

@@ -57,6 +57,20 @@ <h2>Point Chart</h2>
     </div>
     <br />
 
-    {{ column_chart.as_html }}
+    <h2>Column Chart</h2>
+    <div id="point_chart" class="well">
+		{{ column_chart.as_html }}
+        <pre class="code">
+            data = [
+                   ['Year', 'Sales', 'Expenses', 'Items Sold', 'Net Profit'],
+                   ['2004', 1000, 400, 100, 600],
+                   ['2005', 1170, 460, 120, 310],
+                   ['2006', 660, 1120, 50, -460],
+                   ['2007', 1030, 540, 100, 200],
+                   ]
+            data_source = SimpleDataSource(data)
+            chart = gchart.ColumnChart(data_source, options={'title': "Sales/ Expense"})
+        </pre>
+	</div>
     <br />
 {% endblock %}