Release v1.8.4

Changelog

v1.8.3 (16/02/2021)

• Increment version - @petekeller2
• Update package.json scripts - @petekeller2
• Update man pages - @petekeller2
• Add release steps and source code list to readme - @petekeller2
• Put footer text in footer file - @petekeller2
• Add man commands and man footer file - @petekeller2
• Create new-release.yml - @petekeller2