Edit on GitHub links broken about diataxis-documentation-framework

[nbraud]

The second forward slash is not the only issue (removing it manually doesn't fix links)

[usethedata]

A link that works: https://github.com/evildmp/documentation-system/blob/master/introduction.rst

Your link: https://github.com/evildmp/documentation-system//master/introduction

[umarcor]

Since this theme is based on the one from ReadTheDocs, adding the following to your config file might fix it:

html_theme_options = {
    'vcs_pageview_mode': 'blob',
}

Unfortunately, sources seem not to be available (#6), so I cannot confirm.

[evildmp]

Fixed.