Editing decibels.md

[sspencerwire]

• properly format the URL for flathub.org
• properly reference the images from simply "images/" rather than "/gnome/images/"
• remove the HTML keyboard commands and replace them with the proper markdown equivalent
• properly format the admonition so that the content is within the admonition body, rather than outside of it
• fix screen shot reference that does not exist (leftover from a previous un merged project)
• resize first screen shot to get rid of information that is not needed

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 f7ec8a3:

Number of broken URLs: 2

URL,RESULT,FILENAME
 http://developer.download.nvidia/compute/cuda/repos/rhel9/$,failed,desktop/display/installing_nvidia_gpu_drivers.md
 https://azuremarketplace.microsoft.com/en-us/marketplace/apps/resf.rockylinux-aarch64,failed,guides/cloud/migration-to-new-azure-images.md

[sspencerwire]

@CBID2 I've corrected quite a few issues here, but some visual issues remain. A couple of things:

• For proper formatting in Markdown for our platform, please review this document and the sections for "Keyboard" and "Admonitions." The old HTML tags for keyboard commands through errors in a markdown linter.
• Watch that you are referencing your images correctly. Instead of "/gnome/images/.." you simply needed "images/.." as you were already in the gnome folder.

You can see a full list of what was changed in the content of the PR.

Thank you for your contribution!