permalink for #p in #introduction of #exercisegroup

[Alex Jordan]

A note for the keepers of the permalinks. I have a permalink icon showing up in an odd place, here to the left of the "E".

The situation is we are in an exercises, starting an exercisegroup. The #title is "Interval on a Number Line" and the "Express..." is the #introduction. The permalink is for the #p in that introduction.