Tutorial 02: update chinese translate.

[feilongfl]

Description

The Chinese translation of Chapter 2 is more outdated than the current English version.
This PR Updated Chinese translation.

Related Issue:
#166

Pre-commit steps

• Tested on QEMU and real HW Rasperry Pi.
  • Not needed if it is just a README change or similar.
• Ran ./contributor_setup.sh followed by ./devtool ready_for_publish
  • You'll need Ruby with Bundler and NPM installed locally.
  • If no Rust-related files were changed, ./devtool ready_for_publish_no_rust can be used instead (faster).
  • This step is optional, but much appreciated if done.

[andre-richter]

Thanks! I'm gonna merge this without review 👍