Broken link in Marble diagrams doc page

[seanforyou23]

Documentation Related To Component:

operators.md

Marble diagrams

https://github.com/ReactiveX/rxjs/blob/master/docs_app/content/guide/operators.md#marble-diagrams

Please check those that apply

• broken link
• typo
• documentation doesn't exist
• documentation needs clarification
• error(s) in example
• needs example

Description Of The Issue

In this page, there's a nice diagram that shows the anatomy of a marble diagram. Throughout the documentation, there is extensive use of marble diagrams to explain how operators work. While exploring and learning, I noticed the link was broken so it's hard to follow some of the other concepts because the source of truth for how they work doesn't show properly.