[openssl/web] 0de56e: Better dependencies for md->html rendering

[Richard Levitte]

  Branch: refs/heads/master
  Home:   https://github.openssl.org/openssl/web
  Commit: 0de56ea2c9ec83432cb562305fa81c5fe1d1828b
      https://github.openssl.org/openssl/web/commit/0de56ea2c9ec83432cb562305fa81c5fe1d1828b
  Author: Richard Levitte <levitte at openssl.org>
  Date:   2022-05-10 (Tue, 10 May 2022)

  Changed paths:
    M Makefile

  Log Message:
  -----------
  Better dependencies for md->html rendering

It's too easy to miss adding proper depdencies, so let's make that
automatic, at least for md files we have in this repository.

All md->html rendering is made to depend on the presence of dirdata.yaml,
which will be a good reminder to add it where it's missing.

Reviewed-by: Matt Caswell <matt at openssl.org>
(Merged from https://github.com/openssl/web/pull/326)