The Jupyter Notebook
The Jupyter Notebook is an open source web app to create and share text, equations, live code, and visualizations. Although very popular among data scientists, the use of the Jupyter Notebook was not as common in cybersecurity until it proved to be a really effective tool to document and share hunting playbooks. The power of these notebooks relies on the possibility to save not only the code but also the execution results of it. In a way, using a Jupyter notebook, you can take documentation to the next level by creating interactive documentation.
Roberto Rodriguez is writing an interactive book about threat hunting using the Threat Hunter Playbook with the Jupyter Notebook that you should take a look at after finishing this book: https://medium.com/threat-hunters-forge/writing-an-interactive-book-over-the-threat-hunter-playbook-with-the-help-of-the-jupyter-book-3ff37a3123c7.
No matter which technology you choose to document your hunts, after documenting, you should always update your hunting process.