message: minor touchup to migration guide
diff: @@ -135,9 +135,18 @@ TODO
  ## JWT Parsing
  -The JWT is only parsed from the header by default now. It is no longer pulled from the body or query string.
  +The JWT is only parsed from the header and body by default now. It is no longer pulled from the query string.
  -You can customize the header by passing the `app.configure(authentication({header: 'custom'})`. If you want to customize things further you can refer to the [`feathers-authentication-jwt`](https://github.com/feathersjs/feathers-authentication-jwt) module or implement your own custom passport JWT strategy.
  +You can customize the header and body keys like so:
  +
  +```js
  +app.configure(authentication({
  + header: 'custom',
  + bodyKey: 'custom'
  +}));
  +```
  +
  +If you want to customize things further you can refer to the [`feathers-authentication-jwt`](https://github.com/feathersjs/feathers-authentication-jwt) module or implement your own custom passport JWT strategy.
  ## Hook Changes
  