Обсуждение: Add mentions about the DNF's module on the RedHat installation guide

Hi,

I tried to install PostgreSQL 11 on CentOS and found that the official
installation guide does not provide sufficient information to complete
that.
I suppose that this page (
https://www.postgresql.org/download/linux/redhat/ ) should mention to
a DNF's module nature as mentioned below link.

https://bugzilla.redhat.com/show_bug.cgi?id=1718201

If you agree, I will write a patch for pgweb.

Best regards,

-- 
Youki Shiraishi
NTT Software Innovation Center
Phone: +81-(0)3-5860-5115
Email: shiraishi@computer.org