* Clarify bills in currency exchange exercise
The exchange booth in this exercise only deals in
cash of specific increments. That is to say, you can
bring any combination of bills and coins to exchange,
but you get a collection of bills of a single denomination
in the target currency in return.
The explanation was quite clear on this, but the parameter names
and docstrings in the methods dealing with this part of the
task used the term 'budget', which could lead readers to
assume that the bills had to do with the original currency.
This reworks the methods related to bills to be more generic,
not referring to the exchange process at all, hopefully avoiding
this misinterpretation.
See forum thread here for details of the discussion leading to
this change:
https://forum.exercism.org/t/currency-exchange-exercise-suggested-naming-tweaks/7790
* Small Fixes from CI Fails
Fixed some small argument name errors that were causing the CI to fail.
Also sorted reflinks and touched up some language int he `hints.md` file and the instructions.
[no important files changed]
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Co-authored-by: Mett Mamoang <LittleMangoSeed@users.noreply.github.com>
Co-authored-by: BethanyG <BethanyG@users.noreply.github.com>
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