docs: update docs about safeTry

[m-shaka]

updated README and added @deprecated tag to safeUnwrap

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Latest commit: 3aee20a1c429062d26f440fde32a3f26ef05533a

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

This PR includes changesets to release 1 package

| Name | Type | | ---------- | ----- | | neverthrow | Patch |

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