Being able to include the Hubspot tracking code would be huge so we could attribute page views to individual users and understand the full customer journey in more granular detail - right now our API reference is a complete black hole as far as understanding our top of funnel customer/visitor activity outside of pretty generic / useless out of the box & GA analytics. From conversations with prospects and customers it also happens to be one of the most important steps / engagements in our funnel that drives leads to signup & contact us. Public documentation is not just useful for helping customers understand and implement your product but it is also a key marketing and selling asset.
CryptoCRIT is an open-source Cryptocurrency project which facilitates a Cryptocurrency wallet for making payments. The associated Cryptocurrency is called CritCoin. https://github.com/rgab1508/CryptoCRIT
being able to insert my own tracking script in the header ensures we can track our users and GitBook won't have to do an integration for each tool
A tight JIRA issue integration would be very useful in linking documentation to associated JIRA issues.
Idea is to embed a draw.io image in the pages content. For eg. you connect it to specific diagram, select a page within diagram, and then that specific draw.io diagram is embed in the gitbook page and is updated if any changes occur on the original file. Google docs already have this integration/plugin and it works really good :)