fix: mdx escape syntax

[wackerow]

Description

• Escapes less-than symbol syntax

Related Issue

Fixes build issue:

5:40:12 PM: [Error: [next-mdx-remote] error compiling MDX:
5:40:12 PM: Unexpected character `0` (U+0030) before name, expected a character that can start a name, such as a letter, `$`, or `_`
5:40:12 PM: More information: https://mdxjs.com/docs/troubleshooting-mdx] {
5:40:12 PM:   digest: '4260701211'
5:40:12 PM: }

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