Bump version number.
Fix obvious grammar mistakes.

Move hyperlinks in the markdown below section, rather than all at the
end. Readability of markdown not hindered, however clearer to see where
the link is directing.
Clarify wording for AUR packages
Add link to stable AUR package

Note: This link is only live once the package is updated.
This should be very soon after release, as the packaging is simple.
I already inserted it to avoid further commits to master after
release that only update the readme.
Merge branch 'release/1.0.0' into develop