DOCSP-26505 doc for starter charts (#569)

* DOCSP-26505 doc for starter charts

* DOCSP-26505 updates for CR feedback

Author: kanchana-mongodb

source/includes/steps-build-new-chart.yaml

@@ -49,6 +49,18 @@ content: |
   the chart builder. The button says :guilabel:`Select` if you have not
   selected a data source, or it says the name of the currently selected
   data source.
+---
+title: Apply a suggested chart.
+optional: true
+ref: apply-starter-chart
+level: 4
+content: |
+  MongoDB Charts displays up to six prebuilt charts based on the data
+  source that you selected. You can use any one of the suggested charts
+  to get started by clicking the associated :guilabel:`Apply` button.
+  After applying a suggested chart, you can make changes to the chart
+  type and add or remove fields if you wish to customize the prebuilt
+  chart. 
 
 ---
 title: Choose your chart type.