Initialise Docendorse.js
Docendorse(USER_KEY)
Use Docendorse(USER_KEY) to create an instance of the Docendorse object. The Docendorse object is your entrypoint to the rest of the Docendorse.js SDK. Your Docendorse user key is required when calling this function, as it identifies your website to us.
Create and share a single instance of the Docendorse object for each page. Creating multiple instances will lead to performance issues.