Link External Page to a Specific Google Doc Section

I have been dying to learn how to link specific topic headings within my external class website directly to specific portions within Google Document that contains information about those specific sections!

The Google Doc serves as a summary of the unit at hand. A running and flexible document that I, and students contribute to. The external website serves as a static location for all class lesson plans and resources. 

By linking the headings within the website we use on a daily basis, to the specific portions of the Google Document, students can target their studying strategically, directly from the website to the summary notes. 

I finally sat down and figured it out. Super easy! Check out the video below: