docs: add missing imports in examples.md

[krowter]

Hi, I noticed there are two missing imports in the Examples page

• char in the 1st example
• wordChar in the 2nd example

[vercel]

Someone is attempting to deploy a commit to a Personal Account owned by @danielroe on Vercel.

@danielroe first needs to authorize it.

[what-the-diff]

• import { createRegExp, exactly, oneOrMore, digit } from 'magic-regexp'
• import assert from 'node:assert'
• const TENET_RE = createRegExp(wordChar)

[vercel]

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Name	Status	Preview	Comments	Updated
magic-regexp	❌ Failed (Inspect)			Feb 17, 2023 at 10:21AM (UTC)

[danielroe]

Thank you! ❤️