Extend getting started snippets with restriction examples (`with`)

[diego-aquino]

Also show how examples about how to declare request and response headers in https://github.com/zimicjs/zimic/wiki/api%E2%80%90zimic%E2%80%90interceptor%E2%80%90http%E2%80%90schemas#declaring-http-requests.

[github-actions[bot]]

Released in v0.9.1 :tada:

• :pushpin: Release notes
• :package: NPM package