Notice component documentation

[realdylanzheng]

As a designer or developer... I want guidance for the Notice component... So I can understand when and where it should be used.

Acceptance criteria

• [x] Documentation follows the documentation template
• [ ] Documentation describes the differences between Notices and Alerts
• [x] Has thumbnail image

Done when

• [ ] EN documentation is published
• [ ] FR documentation is published

Work in progress

Notice (open in Google Docs)

[adorayi]

@MatildePerrusclet this is ready for review. https://docs.google.com/document/d/1O0yY_VwkXWV2uQ3EPKovzTx6-VFdRaoHRiNuiLXvjJ0/edit?usp=sharing

[MatildePerrusclet]

I'm done reviewing the document @realdylanzheng