This commit updates Configurations/README.md and turns the Makefile
templates into non-links.
The motivation for this is that not all template exist in the directory
leading to 404 Not found errors when accessed.
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/12401)