Fix for Custom Wordpress & Mailchimp Plugin

HI, I estimate this is 2 to 4 hours of work total. The purpose of this project is to edit a custom WordPress/MailChimp integration in order to change an existing single opt-in automated campaign at Mailchimp into a double opt-in campaign. The existing automated campaign is integrated with a custom built personality assessment running in Wordpress and so is not as straightforward as just editing Mailchimp. It will take some patience and some foresight to first understand the site architecture and then to make the required changes without causing any disruption to the current assessment and workflow. Project Details Please go to this link (to be provided to winning developer): This is a registration page for a user to take a “PSIU Individual Assessment.” This assessment has a bunch of questions for the user to answer and after it’s completed, the user receives a personalized PSIU Individual Assessment report via email and is automatically added to the “PSIU Registration” automated campaign at Mailchimp which is a 7-day lesson plan to help the user apply the insights from their report. The purpose of this project is to make the “PSIU Registration” automated campaign into a double-opt in so that the user must first validate their email in order to subscribe to the 7-day lesson plan and integrated newsletter at Mailchimp. A table with the content to add to each assessment page and Mailchimp confirmation emails will be provided. It is very important when working in Wordpress and Mailchimp that you do not cause anything to break. There are multiple campaigns running on Mailchimp on a single list. Only change the PSIU Registration list to be double opt-in but do not create a second list. When working in Wordpress database, be mindful not to disrupt the current PSIU assessment engine. Reply with the words bluehorseshoe to indicate that you’ve read this overview and you're ready to work.