Remaining updates to remove references to howto.gov as was done on the ringsail repo. Commits match 1e2b5c1e419342346d87291c523b4c35df0096d8, 01539dabb993fcafe646528421f6b00da4c9321b, and 0d341255883eddc26c9d3d799b1d2f94f068e599 as closely as possible.