message: adds filtering and pagination example to readme
diff: @@ -298,6 +298,18 @@ const contentType = mime.lookup(filename);
  const uploadFile = await xero.filesApi.uploadFile(tenantId, folderId, readStream, filename, contentType);
  ```
  +# Querying With Filters And Pagination
  +```js
  +const xeroTenantId = 'YOUR_XERO_TENANT_ID';
  +const ifModifiedSince: Date = new Date("2020-02-06T12:17:43.202-08:00");
  +const where = 'Status=="AUTHORISED" AND Type=="SPEND"';
  +const order = 'Reference ASC';
  +const page = 1;
  +const unitdp = 4;
  +
  +const response = await xero.accountingApi.getBankTransactions(xeroTenantId, ifModifiedSince, where, order, page, unitdp);
  +```
  +
  # Preventing CSRF Using Xero-Node
  ```js
  // Configure the XeroClient including a state param.
  