Clarified 6.3 concerning iex output of char lists

iex will only output codepoints when a char list contains a char outside the ascii range. Added result of is_list (true) in example.
Revert "Clarified 6.3 concerning iex output of char lists"

This reverts commit 68bb621b28499ff6272c5fa62b11fea861033938.
Clarified 6.3 concerning iex output of char lists
Grammar and semantic ordering

Corrected singular/plural grammar issues. Reversed iex bin/oct/hex output to match order described in text.
Grammar, missing 'be'
Merge remote-tracking branch 'upstream/master'
Missing 's'
Merge pull request #243 from stoft/master

Clarified 6.3 concerning iex char list output