message: Update CHANGELOG.md
  typo fix
diff: @@ -33,7 +33,7 @@ This build contains fixes for generated code that may have prevented earlier ver
  ## 4.0.0 - April 6, 2020
  ## Changed
  -- `XRPClient` requires a new parameter in it's constructor that identifies the network it is attached to.
  +- `XRPClient` requires a new parameter in its constructor that identifies the network it is attached to.
  - `IlpClient` methods now throw `IlpError`s if something goes wrong during the call
  (either client side or server side).
  This is only breaking if users are handling special error cases, which were previously `grpc.ServiceError`s when
  