update forms example

[cfarm]

on slide file:///Users/farmanc/Sites/gdi-intro-js/class2.html#/46

"You can collect information from users to use in functions. The most common method is an HTML form"

simplify form/use diff markup for example

[cfarm]

update temperature value to get the temperature from an input, for first example. should work with your existing conditional code.

add more relevant new form example besides name - something that would be used in the real world.