Add tock-registers examples and improve snippets

Merge Request Overview

This merge request adds tock-registers examples and fixes code snippets for lecture 02.

Testing Strategy

This merge request was tested by @alexandru.radovici and @daniel.rosner.

TODO or Help Wanted

Proof reading

Build

• Ran ./build.sh.

Author

Signed-off-by: Alexandru Radovici alexandru.radovici@wyliodrin.com