The first tool of choice is a big one, Yu Zhang’s Markdown All in One. This extension provides several great features. One of my favorites is its support for creating a table of contents. After opening the Command Palette (Ctrl + Shift + P), select
Markdown All In One: Create Table of Contentsand it creates a ToC for you based on the heading markers you already have.
Read on for several more things I like about this tool, as well as a discussion of a second useful extension.