[charmod-norm] Figure 1: Terminology examples

r12a has just created a new issue for 
https://github.com/w3c/charmod-norm:

== Figure 1: Terminology examples ==
this example uses non-standard markup, with the result that there are 
now two figures 1 in the doc.

i think the whole exampleBox should become a normal example, and the 
figure markup including the caption should be normalised.

See https://github.com/w3c/charmod-norm/issues/24