Need to Update the Docs or change the API

[Fosol]

Describe the bug

CHES has a bug in the API or Docs. When you return a 422 on the EmailMerge endpoint. The response status is a number, not a string. This will result in errors during deserialization.

To Reproduce

Steps to reproduce the behavior:

1. Submit an invalid request to generate the error response model

Expected behavior

The documentation states that the status property is a string, but it is returned as a number.

You should just update your documentation as changing it to a string will most likely break any solutions expecting a number.

[jujaga]

Resolved in #121