[awais-ur-rehman]

Summary

The README passes 400.56 as the second positional argument, which is now bic. Both examples therefore put the amount into the account's BIC suffix and omit the payment amount. Pass amount=400.56 in the QR and standalone SPAYD examples.

Fixes #23.

Breaking Changes

None.

Testing

• Executed both README Python blocks in a temporary directory with PNG support installed. Before the change, both payloads contained ACC:...+400.56 and no AM field; afterward both contain AM:400.56 and leave bic unset.
• The full image example generated SVG and PNG files successfully.
• pytest -q: 71 passed.
• ruff check . and ruff format --check qrplatba tests passed.
• Whole-tree ruff format --check . reports existing README string-quote formatting differences, also reproduced on the unmodified README.
• git diff --check passed.