Update URL Checker & Remove README Video

[morganzellers]

Linked Issue:

Checklist:

• Did you sign the Contributor License Agreement?
• Is the linter reporting 0 errors?
• Did you comply with our styleguide?
• Does the CI pipeline pass?
• Did you update the documentation?

[codecov-commenter]

Codecov Report

Merging #197 (b0e878a) into main (40432d4) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #197   +/-   ##
=======================================
  Coverage   90.97%   90.97%           
=======================================
  Files         102      102           
  Lines        2538     2538           
=======================================
  Hits         2309     2309           
  Misses        229      229           

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