Summary: edX adds new learning format sections

Why It Matters: This change makes it easier for people to find the right type of learning for them.

What Changed:

• Removed many specific course listings under "Trending on edX" for Executive Education, Courses, Certificates, and Master's/Bachelor's Degrees.
• Added new sections that explain different learning formats: "Become skilled" (Courses), "Become an expert" (Programs), "Become a leader" (Executive Education), and "Become a graduate" (Degrees).
• Added a section called "Find your perfect learning format" which describes "Individual courses," "Certificate programs," "Executive Education," and "Online degrees."
• Added new testimonials from learners.
• Added a section about "edX Enterprise Subscriptions."
• Added new sections for "Popular Subjects" and "Browse Courses," "Step-by-step guides," "Complete your bachelor's online," and "Earn your online graduate degree" in the footer.