LinkedIn Auth Sample produces error

Auth code exchange result received after calling

`linkedin.people.me(async (error, userResults)`

I get the following,

```
{ errorCode: 0,
message: 'This resource is no longer available under v1 APIs',
requestId: 'OPVJ0MW5W1',
status: 410,
timestamp: 1566539742211 }
```

Which in result produces

`UID " linkedin:undefined "`

Not sure if something wrong with your example or the node-linkedin library.

Opened the same ticket with 'node-linkedin'