Added terms to Vale wordlist

[naveenchkrvrthy]

Description of changes: I've added the terms end user and end customer to the Vale checks.

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🦋 Changeset detected

Latest commit: e529f0c499041ea2db8e601713a437cb45e3c136

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

| Name | Type | | --------------------------------- | ----- | | @commercetools-docs/writing-style | Patch |

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🚚 Build Process Details

Preview URLs:

• https://docskit-nc-enduser-vale.commercetools.vercel.app (permalink to the last build of this branch)
• https://docskit-sha-f7a3460bfd049ba4b58c4a570c71cde9a6abd6a0.commercetools.vercel.app (this commit)