Release v0.6.0

[Sh3Rm4n]

• Merge Doc lint #173
• Merge Add tests for rcc via defmt-test and support defmt in hal #172
• Test all examples
  • adc (_only smoke test _) [1]
  • can (only smoke test) [1]
  • gpio_erased
  • i2c_scanner
  • pwm (only smoke test) [1]
  • serial_dma
  • spi
  • toggle
  • usb_serial
• Run all tests
  • Rcc
• Update Changelog
  • Top Version
  • Bottom Version Link
• No Dead Links
• Bump Cargo.toml
• Update references to version (Documentation Links)
• Tag and Relase on Github
• Release on crates.io

[1]: Did not panic!