Standardize the capitalization of specific words

[jimcat8]

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 32e0b55:

Number of broken URLs: 10

URL,RESULT,FILENAME
 https://flathub.org,failed,desktop/gnome/file-shredder.md
 https://flathub.org/,failed,desktop/gnome/decoder.md
 https://flathub.org,failed,desktop/gnome/valuta.md
 https://flathub.org/,failed,desktop/gnome/flatpak.md
 https://flathub.org,failed,desktop/gnome/decibels.md
 http://your_ip,failed,guides/cms/mediawiki.md
 http://$(hostname):8080,failed,guides/repositories/pulp_fetch_upload.md
 https://ftp.gnu.org/gnu/tar/,failed,guides/backup/tar.md
 https://ftp.gnu.org/gnu/hello/hello-2.12.tar.gz,failed,labs/systems_administration_I/lab7-software_management.md
 https://repocompare.rockylinux.org,failed,release_notes/8_5.md

[wsoyinka]

typo(?). please fix

[sspencerwire]

Hey @jimcat8 and @wsoyinka I'm not a fan of adding capital's to things like "Source address." I'm leaving this decision up to @wsoyinka, but in my view most of the proposed changes here are incorrect both grammatically and technically. Again, I'm leaving the final decision on this to @wsoyinka and will let him decide. I can tell you that if you use an editor that is technically aware, it will not capitalize most of the changes made here, and in fact will call them errors.