Typo in cat command

[MrPaulAR]

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 78ad25d:

Number of broken URLs: 2

URL,RESULT,FILENAME
 http://sauveur.xyz,failed,guides/contribute/README.md
 http://laurenzkruty.de,failed,guides/contribute/README.md

[wsoyinka]

Thank you @MrPaulAR :-)

[sspencerwire]

@all-contributors please add @MrPaulAR for content.

[allcontributors]

@sspencerwire

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