[openssl/openssl] 89b4d3: doc: Minor typo in SSL_CTX_set_tmp_dh_callback docs.

[Sean Bright]

  Branch: refs/heads/openssl-3.0
  Home:   https://github.com/openssl/openssl
  Commit: 89b4d336971bd440612ff34ad167bd29b49c7241
      https://github.com/openssl/openssl/commit/89b4d336971bd440612ff34ad167bd29b49c7241
  Author: Sean Bright <sean at seanbright.com>
  Date:   2023-11-30 (Thu, 30 Nov 2023)

  Changed paths:
    M doc/man3/SSL_CTX_set_tmp_dh_callback.pod

  Log Message:
  -----------
  doc: Minor typo in SSL_CTX_set_tmp_dh_callback docs.

well know -> well known

CLA: trivial

Reviewed-by: Todd Short <todd.short at me.com>
Reviewed-by: Tomas Mraz <tomas at openssl.org>
(Merged from https://github.com/openssl/openssl/pull/22778)

(cherry picked from commit db04cf25f3e0dda77a3b054ae12ae1874b1ae977)