Update doc website with more FAQs and expect output tab

[samarth8392]

Changes

• Updates the FAQs with instructions on how to use snakemake.log.jobby.short
• Removed references to RNA-seek from troubshooting.md
• Updated GUI instructions image with renee gui instead of renee_gui
• Added Expected Output tab to doc website

Issues

Resolves #146
Resolves #147

PR Checklist

(Strikethrough any points that are not applicable.)

• This comment contains a description of changes with justifications, with any relevant issues linked.
  - [ ] Update docs if there are any API changes.
• Update CHANGELOG.md with a short description of any user-facing changes and reference the PR number. Guidelines: https://keepachangelog.com/en/1.1.0/

[samarth8392]

@kopardev @kelly-sovacool Can either of you take a look at the updated FAQs (troubleshooting.md) and the expected output documentation I have added. Let me know if they look good or do I need to revise the docs.

[kelly-sovacool]

Looks good @samarth8392, just a couple minor suggestions

[kelly-sovacool]

I changed the changelog entry to use the PR number instead of the issue numbers, and also updated your initial PR comment to use "Resolves" for each issue so they will be closed when this is merged.