message: incorporate readme fix for
diff: @@ -86,9 +86,12 @@ Call `apiCallback` function with the response url which returns a tokenSet you c
  *The `tokenSet` can also be accessed from the client as `xero.readTokenSet()`.*
  ```js
  -const tokenSet = await xero.apiCallback(req.url);
  +
  +const { TokenSet } = require('openid-client');
  +
  +const tokenSet: TokenSet = await xero.apiCallback(req.url);
  ```
  -The `tokenSet` will contain your access_token and refresh_token as well as other information regarding your connection.
  +The `tokenSet` is what you should store in your database. That object is what you will need to pass to the client. It contains your access_token and refresh_token as well as other information regarding your connection.
  ```js
  {
  id_token: 'eyJhxxxx.yyy',
  @@ -148,11 +151,11 @@ console.log(tenants || xero.tenants)
  ---
  ## Making **offline_access** calls
  -Once you have a valid token saved you can set the token on the client without going through the callback by calling `setTokenSet`.
  +Once you have a valid token/tokenSet saved you can set the tokenSet on the client without going through the callback by calling `setTokenSet`.
  For example - once a user authenticates you can refresh the token (which will also set the new token on the client) to make authorized api calls.
  ```js
  -const tokenSet = getTokenFromDatabase(userId) // example function name
  +const tokenSet = getTokenSetFromDatabase(userId) // example function name
  await xero.setTokenSet(tokenSet)
  