docs(machines): Add startOnCreate override. (#57)

Author: colin-welch

lib/machines/create.js

@@ -31,6 +31,7 @@ var assign = require('lodash.assign');
  * @param {string} params.templateId - Template id of the template to use for creating this machine
  * @param {boolean} [params.assignPublicIp] - Assign a new public ip address on machine creation. Cannot be used with dynamicPublicIp.
  * @param {boolean} [params.dynamicPublicIp] - Assigns a new public ip address on machine start and releases it from the account on machine stop. Cannot be used with assignPublicIp.
+ * @param {boolean} [params.startOnCreate] - Start the VM immediately after creation. Defaults to `true`.
  * @param {string} [params.networkId] - If creating on a specific network, specify its id
  * @param {string} [params.teamId] - If creating the machine for a team, specify the team id
  * @param {string} [params.userId] - If assigning to an existing user other than yourself, specify the user id (mutually exclusive with email, password, firstName, lastName)