Add Node.js Version Requirements

[salamander77712]

The "Quick Start" in the "Getting Started" sections lists Node.js as a perquisite for running Vue locally, however, the required version of Node.js isn't listed. This is an issue because Vite uses node: import, which isn't support on v15 of Node.js, resulting in errors when attempting to run npm run dev or npm run build.

[NataliaTepluhina]

@salamander77712 thank you! Updated the Node requirement with v15 or higher