more descriptive headings for visualisation types

[FreakyBytes]

Trac Ticket #22

component: code
owner: somebody
reporter: dagmar
created: 2016-09-22 17:28:52
milestone:
type: task
version:
keywords:

I just got the recommendation to put more descriptive captions on the main page, where you select the type of visualisation you want to see (donut - heatmap - boxplot). It seems to be more useful to directly put what data people will see.