Typo when initializing Avatar() #298

General Information

• MessageKit Version:
  0.10.0

• iOS Version(s):
  N/A

• Swift Version:
  N/A

• Devices/Simulators:
  N/A

• Reproducible in ChatExample? (Yes/No):
  Probably

What happened?

When accessing the Avatar initializer, the "initials" argument is spelled incorrectly.
It's spelled "initals" (missing the last "i") in the function but in the MessagesDataSource, it's spelled correctly.

Sorry I'm being anal about spelling. I really do appreciate this entire project. It just bugs me more than it should.

What did you expect to happen?