Documentation should be adapted to the new changes

[aliasbody]

I think most of the people who use the library will face a lot of problems because of the changes in the V8+ and the fact that the documentation (and examples) are still reporting to the v7.

As an example, this is what I was doing before:

google: {
  clientId: environment.GOOGLE_CLIENTID,
  url: XXXX,
  optionalUrlParams: ['access_type', 'approval_prompt'],
  redirectUri: XXXX
  requiredUrlParams: ['scope'],
  authorizationEndpoint: 'https://accounts.google.com/o/oauth2/auth',
  scopePrefix: 'openid',
  scopeDelimiter: ' ',
  scope: [
    'email',
    'profile',
  ],
  accessType: 'offline',
  oauthType: '2.0',
  approvalPrompt: 'force',
},

But because of the changes now we have to do this:

google: {
  clientId: environment.GOOGLE_CLIENTID,
  url: 'XXXX',
  redirectUri: 'XXX',
  authorizationEndpoint: 'https://accounts.google.com/o/oauth2/auth',
  scopeDelimiter: ' ',
  scope: [
    'https://www.googleapis.com/auth/userinfo.email',
    'https://www.googleapis.com/auth/userinfo.profile'
  ],
  additionalUrlParams: {
    'access_type': 'offline',
    'approval_prompt': 'force',
  },
},

The new additionalUrlParams is really a plus in a way of the parameters are handled, and it's really easier, but I lost a lot of hours trying to understand how to make this work along with the rest since the project wouldn't compile with the accessType (since it's not in IPartialConfigOptions).

[ronzeidman]

You're right, things got in the way and this library didn't get the love it deserves. I'll try to clear out some time and document everything better + getting the example up-to-date.