docs: add examples for SubtleCrypto (#28068)
Adds examples for subtleCrypto
(https://docs.deno.com/api/web/~/SubtleCrypto)
- generateKey
- importKey
- exportKey
- sign
- verify
- digest
- encrypt
- decrypt
- deriveBits
- deriveKey
- wrapKey
- unwrapKey
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Co-authored-by: Ryan Dahl <ry@tinyclouds.org>
Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>
