Style form on main page
Style indicators page
Use GET instead of POST for form

It's an idempotent request that doesn't change anything.
Use list items for countries and indicators

Also limited list to 10 countries
and added indicator in parentheses

This code is written in a particular way in order to be useful for
teaching. I am not using any advanced features of Clojure, such as
destructuring, because I will not be teaching them.
Format indicator number
Merge pull request #4 from cndreisbach/list-items

Change indicators to list items