[3.12] Docs: Link tokens in the format string grammars (GH-108184) (#113839)

Docs: Link tokens in the format string grammars (GH-108184)
(cherry picked from commit f3d5d4aa8f0388217aeff69e28d078bdda464b38)

Co-authored-by: William Andrea <william.j.andrea@gmail.com>
Co-authored-by: Adam Turner <9087854+aa-turner@users.noreply.github.com>
Co-authored-by: Sergey B Kirpichev <skirpichev@gmail.com>