Fix typos and uppercasing

[ghost]

• Fixes a typo.
• Uppercases a word at the beginning of a sentence.
• Could change various exporter to various exporters instead of just exporter as suggested in this PR.

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[songy23]

Please sign the CLA.

[odeke-em]

@jakobeinride you need to sign the Google CLA and then @songy23 please help me verify whenever @jakobeinride has signed it. Thanks y'all!

[ghost]

Signed!

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