Fixed typo.
Should fix an issue where the .htaccess file was split into several <pre> tags.

This error is not reproducible by the github preview tab, so I am not 100% sure it is fixed. Added whitespace on the empty lines.
[MINOR] Fixed a markup error.
Rewrote a nonsensical paragraph about rewriting.
[MINOR] build -> built
[MINOR] Changed so that ä is displayed as &auml; as intended by author.
Merge pull request #2097 from CheeseSucker/patch-1

Fixed a few documentation issues I've stumbled upon.