Merged requested to merge skchoudhary/se-4445-refactor-table-of-content into master
This MR groups the related pages under a section title in the navigation bar of the handbook. With these changes it will be easy to navigate and find the relevant sections in the handbook easily.
JIRA tickets: https://tasks.opencraft.com/browse/SE-4445
- Verify the navigation section of the handbook groups only the relevant pages.