Build(deps): Bump markdown-to-jsx in /examples/basic (#1680)

Bumps [markdown-to-jsx](https://github.com/probablyup/markdown-to-jsx) from 6.11.0 to 6.11.4.
- [Release notes](https://github.com/probablyup/markdown-to-jsx/releases)
- [Commits](quantizor/markdown-to-jsx@6.11.0...6.11.4)

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