More tweaks to the installation instructions
More tweaks to the installation instructions

A few things were out of date and a few things were missing. Also some
formatting updates.

Reviewed-by: Richard Levitte <5fb523282dd7956571c80524edc2dccfa0bd8234@openssl.org>

openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl