doc: use colon for all color's rangs (GH-28998)

(cherry picked from commit 6b9f27dd0b5da53b1fd648494879d857572bec80)

Co-authored-by: Rafael Fontenelle <rffontenelle@users.noreply.github.com>

diff --git a/Doc/library/tkinter.rst b/Doc/library/tkinter.rst
index e1b2a87b0ff2e4f3a88abf7ae50cf5703dea905c..999852a58cf6a76321717b648fa1ab62ae2138b9 100644 (file)
--- a/Doc/library/tkinter.rst
+++ b/Doc/library/tkinter.rst
@@ -644,8 +644,8 @@ callback
 
 color
    Colors can be given as the names of X colors in the rgb.txt file, or as strings
-   representing RGB values in 4 bit: ``"#RGB"``, 8 bit: ``"#RRGGBB"``, 12 bit"
-   ``"#RRRGGGBBB"``, or 16 bit ``"#RRRRGGGGBBBB"`` ranges, where R,G,B here
+   representing RGB values in 4 bit: ``"#RGB"``, 8 bit: ``"#RRGGBB"``, 12 bit:
+   ``"#RRRGGGBBB"``, or 16 bit: ``"#RRRRGGGGBBBB"`` ranges, where R,G,B here
    represent any legal hex digit.  See page 160 of Ousterhout's book for details.
 
 cursor