Update CONTRIBUTING.md

[afshinator]

docs: correction

There is no prototypical inheritance, the correct word is 'prototypal'.

[mary-poppins]

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[petebacondarwin]

Thanks @afshinator. While we are being pedantic, can you follow our commit message guidelines for future pull requests please? It saves us time not having to rework the messages when merging

[afshinator]

I thought I was! Whats missing from the below ?
docs: correction

There is no prototypical inheritance, the correct word is 'prototypal'.

[gkalpak]

@afshinator
You commit message was:

Update CONTRIBUTING.md
docs: correction

There is no prototypical inheritance, the word is 'prototypal'.

While is should be something like:

docs(CONTRIBUTING): prototypical -> prototypal

<Describe your change here> e.g.:
There is no prototypical inheritance, the word is 'prototypal'.

_{I still don't know why I get into other people's business...}