[openssl/web] 2f21aa: Fix the about us image link

[Matt Caswell]

  Branch: refs/heads/master
  Home:   https://github.com/openssl/web
  Commit: 2f21aab8e502e39f3af23eee5dec173af27dd256
      https://github.com/openssl/web/commit/2f21aab8e502e39f3af23eee5dec173af27dd256
  Author: Matt Caswell <matt at openssl.org>
  Date:   2023-07-26 (Wed, 26 Jul 2023)

  Changed paths:
    M about.md

  Log Message:
  -----------
  Fix the about us image link

The path the team photo was incorrect in about.md

Reviewed-by: Tim Hudson <tjh at openssl.org>
(Merged from https://github.com/openssl/web/pull/409)