"!" to create default boilerplate requires extension in VSCode

[meghangantt]

Hi there, I wanted to point out a small error in the HTML Boilerplate lesson. The lesson states that "VSCode has a built-in shortcut" which allows the developer to enter "!" to easily populate with a default HTML boilerplate. This only worked for me after installing the HTML Boilerplate extension–instructions for this can be found here: https://marketplace.visualstudio.com/items?itemName=sidthesloth.html5-boilerplate