Remove shell prefix from command examples

[ssimpson89]

These documents use Shell > as a prefix for command blocks. This does not appear to be a standard practice in these docs and, in my opinion, makes it a bit harder to read than just standard shell commands without a prefix.

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 77d95ae:

Number of broken URLs: 12

URL,RESULT,FILENAME
 https://mirrors.fedoraproject.org/metalink?repo=epel-8&arch=$basearch&infra=$infra&content=$contentdir,failed,books/admin_guide/13-softwares.md
 https://support.torproject.org/glossary/pluggable-transports/,failed,guides/proxies/tor_relay.md
 http://your_ip,failed,guides/cms/mediawiki.md
 https://www.dokuwiki.org/dokuwiki,failed,guides/cms/dokuwiki_server.md
 https://download.dokuwiki.org/,failed,guides/cms/dokuwiki_server.md
 https://download.dokuwiki.org/src/dokuwiki/dokuwiki-stable.tgz,failed,guides/cms/dokuwiki_server.md
 http://$(hostname):8080,failed,guides/repositories/pulp_fetch_upload.md
 https://dl.rockylinux.org/pub/rocky/9.6/live/x86_64/,failed,guides/desktop/kde_installation.md
 https://ftp.gnu.org/gnu/tar/,failed,guides/backup/tar.md
 https://andyscott.me,failed,guides/contribute/README.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

[alemorvan]

I completely agree with you.

[sspencerwire]

I would concur.