docs: fix gamma correction link
authorEric Engestrom <eric.engestrom@imgtec.com>
Tue, 14 Feb 2017 22:48:56 +0000 (22:48 +0000)
committerEric Engestrom <eric.engestrom@imgtec.com>
Tue, 21 Feb 2017 14:54:10 +0000 (14:54 +0000)
commit6181ab9d771270c876f0f152e8b5cfd89c8a392d
tree18d40c2e7ceb082d6d1dd625bf85036404c1e34d
parentb347bbb63b71349e3344216da6ce48eee91dcef2
docs: fix gamma correction link

That link has been dead for 15 years...
We could link to Archive.org [1] to get the last time this page existed,
but I feel like Wikipedia is a better choice.

[1] http://web.archive.org/web/20021211151318/http://www.inforamp.net/~poynton/notes/colour_and_gamma/GammaFAQ.html

Signed-off-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
docs/xlibdriver.html