Create sub navigation for each main nav

[muneebkhan98]

Currently, each main section has many sub-sections within the page identified by unique # ids.

For subheading in the main section, primary navigation should have an expandable secondary/sub nav. Linking to specific # id of the sections.

Ideally, this should be done once we create single pages for each subsection. But it would still be fine if we don't have single pages.

For example

• FAQ
  • University and Degree
  • University and Degree
  • Career and growth
  • ...