Unexpected error for exceeded_rate

[cobraextreme]

I'm getting responses with status 429 when rate limit is exceeded, which isn't in ERRORS in HelloSign::Client, and thusly raises HelloSign::Error::UnknownError.

The documentation here https://app.hellosign.com/api/reference#WarningsAndErrors suggests this should return 403 and raise HelloSign::Error::Forbidden.

I'm wondering if this is intentional, or if ERRORS and documentation just haven't been updated to match the actual api responses.

[cobraextreme]

Opened #60

[Alex Griffen]

Thanks for calling that out! The HTTPS CODE under ErrorNames is incorrect for exceeded_rate - it's a 429.

Making a comment on the PR now too.

Thanks again!

[Jen Young]

Resolved in #60