Help/FAQ additions
It would be helpful to have some very basic (and probably obvious) workflow questions addressed on the [help page](https://kactus.io/help/). For example, it's not entirely clear what should *actually* be tracked by git and how Kactus changes your workflow on a project. As a new user introducing Kactus to a teams' workflow, the following [very obvious] questions need answers:

1. **Do we commit `.sketch` files to the repo?** My current understanding is that they should be ignored and we commit only the "exploded" versions. Is this the recommended strategy?

2. **How do we merge changes?** When another team member has committed changes to a project, how do we effectively receive those changes and merge them into the sketch file? Do we pull and "regenerate sketch file"?

3. **How can we leverage shared symbols?** What are they? Caveats? Will the introduction of [Sketch Libraries](https://sketchapp.com/learn/documentation/libraries/) affect Kactus?

4. **What happens when things go awry?** In a typical project, git provides a safety net that allows you to `git checkout .` or `git reset --hard` if the sh*t hits the fan. Does this change for kactus-managed sketch repos?

Some of these are address in the screen gifs on the help page, but they are super fast and hard to follow (and not searchable).