Implement: Quick Start

[timcappalli]

Part of #139

New page under the new Implement section for quick start

[timcappalli]

Early content draft: https://github.com/passkeydeveloper/passkeys.dev/wiki/Implement:-Quick-Start

[kzaky]

This is a great start. I am going to move the Early content draft: https://github.com/passkeydeveloper/passkeys.dev/wiki/Implement:-Quick-Start to the proj/implement-section branch and make further edits there.

[kzaky]

@timcappalli @MasterKale looking for your input on the proposal for this section https://github.com/passkeydeveloper/passkeys.dev/blob/proj/implement-section/content/en/docs/implement/quick-start/index.md