Extend documentation

[kettanaito]

What

Current documentation is missing the next aspects:

• Add "examples" section
• Describe manual tracking on a Carousel example

[kettanaito]

Update

It would make sense to use ./examples folder for the "Examples" section. May require some fancy design to not look like a complete piece of poop.

[kettanaito]

Update

• Each snapshot can also have its own targets and bounds. Nothing is written in the docs regarding this, while this is quite a useful feature