editing apache-sites-enabled.md

[sspencerwire]

• fix typo
• add admonition warning on cipher suite use

Author checklist (Completed by original Author)

• Good fit for the Rocky Linux project? Title and Author Metatags inserted ?
• If applicable, steps and instructions have been tested to work
• Initial self-review to fix basic typos and grammar completed

Rocky Documentation checklist (Completed by Rocky team)

• 1st Pass (Document is good fit for project and author checklist completed)
• 2nd Pass (Technical Review - check for technical correctness)
• 3rd Pass (Detailed Editorial Review and Peer Review)
• Final approval (Final Review)

[github-actions]

Test results for 357c42a:

Number of broken URLs: 3

URL,RESULT,FILENAME
 http://$(hostname):8080,failed,guides/repositories/pulp_fetch_upload.md
 https://allcontributors.org/docs/en/emoji-key,failed,guides/contribute/README.md
 https://doc.dovecot.org/configuration_manual/config_file/config_variables/#config-variables,failed,guides/email/02-basic-email-system.md