data: add Appsmith vendor (Closes #259)

[laurentketterle-hub]

Adds the Appsmith startup program vendor record.

Closes #259

Signed-off-by: laurentketterle-hub laurentketterle-hub@users.noreply.github.com

[auscaster]

Thanks for this. sourcey/validation is green, but the evidence pass for this head could not locate support for every submitted fact, so sourcey/admission cannot go green yet.

Uncovered on the record: /description, /category.

Fix it on this same branch: either cite a public page that states the fact (add the URL to sources and reference its source_id from the record that needs it), or change the record to what the cited pages do say. Push to the branch and the checks re-run automatically.