Draft 1.4.12 Text Spacing Technique: Allowing for spacing override

Hello everyone,

Per discussion at yesterday's meeting [1], this email is to notify the
WG that I have drafted a technique.

It is "Allowing for spacing override" for Success Criterion 1.4.12,
Text Spacing.

You can view it at:
https://rawgit.com/w3c/wcag/tech-spacing-override/techniques/css/spacing-override.html

It is in GitHub at:
https://github.com/w3c/wcag/blob/tech-spacing-override/techniques/css/spacing-override.html

Like Detlev did for his draft technique [3], I worked straight on the
specific technique branch, as requested the Initial Creation Step [2]
in the Wiki instructions.

Kindest Regards,
Laura

[1] https://www.w3.org/2018/06/19-ag-minutes.html#item06
[2] https://lists.w3.org/Archives/Public/w3c-wai-gl/2018AprJun/0740.html
[3] https://www.w3.org/WAI/GL/wiki/Wcag21-techniques#Initial_creation

-- 
Laura L. Carlson