[openssl/web] c848ac: Move Shiguredo to be a Gold sponsor with logo

[mark]

  Branch: refs/heads/master
  Home:   https://github.openssl.org/openssl/web
  Commit: c848acfcbf2e3679262e11ff5c12a535ded7433a
      https://github.openssl.org/openssl/web/commit/c848acfcbf2e3679262e11ff5c12a535ded7433a
  Author: Mark J. Cox <mark at awe.com>
  Date:   2022-07-11 (Mon, 11 Jul 2022)

  Changed paths:
    A img/shiguredo-logo-med.png
    M support/acks.html

  Log Message:
  -----------
  Move Shiguredo to be a Gold sponsor with logo