typo: informations -> information
Fix error in manpage

To start a line with '.' in manpage it should be preceded with the
empty space escape sequence '\&'. Fix this in the direnv manpage
Merge pull request #112 from JaviMerino/master

typo: informations -> information
Merge pull request #113 from punitagrawal/manpage-fix

Fix error in manpage
New site: put the doc inside the project so it stays in sync
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