Markdown linting

[ruebot]

Best to get a second set of eyes on all these:

• https://github.com/archivesunleashed/aut-docs/blob/lint/current/README.md
• https://github.com/archivesunleashed/aut-docs/blob/lint/current/aut-at-scale.md
• https://github.com/archivesunleashed/aut-docs/blob/lint/current/binary-analysis.md
• https://github.com/archivesunleashed/aut-docs/blob/lint/current/dataframe-schemas.md
• https://github.com/archivesunleashed/aut-docs/blob/lint/current/df-results.md
• https://github.com/archivesunleashed/aut-docs/blob/lint/current/filters-df.md
• https://github.com/archivesunleashed/aut-docs/blob/lint/current/filters-rdd.md
• https://github.com/archivesunleashed/aut-docs/blob/lint/current/image-analysis.md
• https://github.com/archivesunleashed/aut-docs/blob/lint/current/link-analysis.md
• https://github.com/archivesunleashed/aut-docs/blob/lint/current/rdd-results.md
• https://github.com/archivesunleashed/aut-docs/blob/lint/current/release-process.md
• https://github.com/archivesunleashed/aut-docs/blob/lint/current/standard-derivatives.md
• https://github.com/archivesunleashed/aut-docs/blob/lint/current/text-analysis.md
• https://github.com/archivesunleashed/aut-docs/blob/lint/current/toolkit-walkthrough.md

[ianmilligan1]

Looks great! Sorry for delay on review.

I caught two out-of-scope typos (which might have well as been from me in the past), might as well fix them in this PR and then I can merge?

[ruebot]

No worries! Datathon was the priority 😄

Hopefully this new commit doesn't break the display a bunch of stuff.