Doc: add missing manpage and title references in tkinter docs (GH-29008)

- add bind(3tk) manpage markup
- add Tcl/Tk book reference markup
(cherry picked from commit 0e12781ad9dec6e46ccb85969c0eb7be1ecad81d)

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