Typo in example introduction for the window adaptation part

[oarriaga]

Hi hi! The original jupyter documentation for the introduction reused the state and kernel in cell 17 outputted from the window adaptation warmup in cell 16.

However, the current html documentation seems to use an entirely new kernel nuts.step with the previous state initial_state. If this is a typo I could send a quick PR changing the markdown file back to the original jupyter documentation form.

Thanks!

[rlouf]

This is totally a typo!