DOC: lrange, lzip --> list(range and list(zip
Internally, definitely want to use `lzip` and `lrange`, but for clarity I think it's better to just use the written out versions of them, especially since they aren't really key components of pandas. (and generally would not expect someone working through an example to care about compatibility issues).

This only changes docs.

cc @cpcloud

+1
 merge?
 ready to go for me
 thank you sir!
