Update link in colorsys docs to be https (GH-14062)

diff --git a/Doc/library/colorsys.rst b/Doc/library/colorsys.rst
index 1360c7cc9f1db46eda64511c42853dffba7dfee1..b672a05b39145d45ce0de160c4717aa2edfd37d8 100644 (file)
--- a/Doc/library/colorsys.rst
+++ b/Doc/library/colorsys.rst
@@ -21,7 +21,7 @@ spaces, the coordinates are all between 0 and 1.
 .. seealso::
 
    More information about color spaces can be found at
-   http://poynton.ca/ColorFAQ.html and
+   https://poynton.ca/ColorFAQ.html and
    https://www.cambridgeincolour.com/tutorials/color-spaces.htm.
 
 The :mod:`colorsys` module defines the following functions: