Feature request: Slack integration - provide more context about what was updated

Hey Gitbook team 👋

I really love that you have a Slack plugin, but right now it's not super useful outside of saying that "something was updated in x space". For example:

GitBook [App]
Content of Example Space Name has been updated

This isn't very useful information. We want to keep our wider team informed of changes to our Gitbook docs - even if they don't have a seat on Gitbook. Right now this is a very manual process, because I have to go and summarise the changes each time we push a change.

Instead, it would be lovely if the Slack integration posted a message like:

GitBook [App]
Content of Example Space Name has been updated by Firstname Lastname: Add background info on xyz

Pages updated:

• API - xyz
• Concept - xyz

This makes it super easy to understand what was changed, who changed it, and where I can see the new content. I tried to do some of this in PR #168 but unfortunately it doesn't seem that the right data is available via the API.

Hope this is something you're able to add to your backlog. Thank you! 😄

Start by reading the issue and PR #168, then verify which author, change-summary, and updated-page data the GitBook API exposes for the Slack integration. Done means the integration can post the requested actor, summary, and linked pages, or clearly documents the API limitation preventing those details.