Doc: Bump Sphinx verison. (#13785)
To reflect the one we're using in production.
J
Julien Palard committed
7d23dbe6d17bb872da5b89a5674cb32a7a1a2b9c
Parent: 552ace7
Committed by GitHub <noreply@github.com>
on 6/15/2019, 1:41:58 PM