Add man page + Rake task

[virajsazzala]

• Add man/haiti.1
• Add the man/haiti.ronn file
• Add install_manpage rake task

fix #127

[sonarcloud[bot]]

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[virajsazzala]

@noraj I've updated the code with the specified changes. Is there anything else I should change?

Also, as this is a part of the hacktoberfest, will you be adding the hacktoberfest-accepted tag, if merged?

[noraj]

@noraj I've updated the code with the specified changes. Is there anything else I should change?

LGTM, I merged it after testing and made minor changes https://github.com/noraj/haiti/commit/a2833748ee904596081e4e09b460b1ea387a6cca.

Also, as this is a part of the hacktoberfest, will you be adding the hacktoberfest-accepted tag, if merged?

https://hacktoberfest.com/participation/

[participating] Your PR/MRs must be in a repo tagged with the “hacktoberfest” topic, or have the “hacktoberfest-accepted” label.

[accepted] Your PR/MRs must be merged, have the “hacktoberfest-accepted” label, or have an overall approving review.

It's not needed ;)

[virajsazzala]

Glad, I could contribute :))