For making a heading start the syntax with followed by a space and then the text. Enter this text in a markdown cell. Text can be added to Jupyter Notebooks using Markdown cells.
Markdown is a simple text-to-HTML markup language written in plain text.
If you have created an equation with a label you can link to it from within your text and across pages. Text can be added to Jupyter Notebooks using Markdown cells. Because jupyter-book is built on top of Sphinx there are many ways to reference content within your book or even across other books or Sphinx websitesThis page has several examples of what you can reference and how to accomplish it. Jupyter notebook recognizes markdown and renders markdown code as HTML.