Replace misspell with cspell

[thompson-tomo]

What are you trying to achieve?

Currently we are using misspell to perform spell checking however the library we are using has not been updated since march 2018 and the repo archived.

As mentioned in client9/misspell#197 the library has been forked and as such we could switch to the fork. Alternatively we could switch to cspell which is what otel.io uses.

Additional context.

OTEL.io repo is already using cspell and this would simplify the developer environment by removing the go environment from the documentation checks.

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