Add installation guide for Terminator

[andcscott]

Related to #2417

This doc provides installation instructions for Terminator on Rocky Linux 9.4. Please advise if any updates are required, thanks!

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 fc0296a:

Number of broken URLs: 4

URL,RESULT,FILENAME
 http://rocky.reloumirrors.net/9.4/extras/x86_64/os/repodata/7d78a729-8e9a-4066-96d4-ab8ed8f06ee8-FILELISTS.xml.gz,failed,books/web_services/053-load-balancer-proxies-squid.md
 http://miroir.univ-lorraine.fr/rocky/9.4/AppStream/x86_64/os/repodata/1af312c9-7139-43ed-8761-90ba3cd55461-UPDATEINFO.xml.gz,failed,books/web_services/053-load-balancer-proxies-squid.md
 http://www.example.org/foo.txt,failed,books/web_services/052-load-balancer-proxies-varnish.md
 https://azuremarketplace.microsoft.com/en-us/marketplace/apps/resf.rockylinux-aarch64,failed,guides/cloud/migration-to-new-azure-images.md

[Grammaresque]

Addresses Issue #2417

[sspencerwire]

Thanks very much @andcscott! It turns out that I use terminator all the time, so depending on what I see when editing, I may add to it. I mean, basically, I just use it. ;-)

[sspencerwire]

@all-contributors add @andcscott as a contributor

[allcontributors]

@sspencerwire

I couldn't determine any contributions to add, did you specify any contributions?
Please make sure to use valid contribution names.

[sspencerwire]

@all-contributors add @andcscott as contributor

[allcontributors]

@sspencerwire

I couldn't determine any contributions to add, did you specify any contributions?
Please make sure to use valid contribution names.

[sspencerwire]

@all-contributors add @andcscott for content

[allcontributors]

@sspencerwire

I've put up a pull request to add @andcscott! 🎉

[andcscott]

@sspencerwire Same here! And I always forget that it's in ELPA when installing a new machine!! In any case, thank you for reviewing so quickly.