When you generate a narrative using the Narratives for Qlik Extension, changes you make to the underlying chart will be reflected in the narrative itself. An example of this functionality is when you change an axis label in the chart, the narrative will automatically change to reflect this adjustment.
1) Assuming you have connected your narrative to the chart already, you will make a change to the chart just like you normally would. In this example, it will be a change to an axis label.
2) Once you've made the change to the axis label, you will see the change reflected in the accompanying narrative.