Node version compatibility issues <= 14.17.5 required

[EdSouthgate]

trafficstars

Issue

This was the issue I faced trying to use the course...

10% building 3/3 modules 0 active(node:33268) [DEP0111] DeprecationWarning: Access to process.binding('http_parser') is deprecated.
(Use `node --trace-deprecation ...` to show where the warning was created)

Downgrading my node version from latest fixed the issue.

Suggested fix

Add a note to the readme.

[KannaDinesh]

@EdSouthgate Thanks