Update website for naming issues

[yizha1]

I reviewed the documents on website, and found the following containing Notary term, and thus need to be updated per the approved proposal.

• https://notaryproject.dev/docs/overview/
• https://notaryproject.dev/docs/faq/#what-registries-are-compatible-with-notary
• https://notaryproject.dev/docs/installation/
• https://notaryproject.dev/docs/tutorials/
• https://notaryproject.dev/docs/tutorials/trust-policy/
• https://notaryproject.dev/docs/how-to/
• https://notaryproject.dev/docs/concepts/

[zr-msft]

@yizha1 @toddysm can you clarify that when referring to the signature or envelope is it Notary signature or Notary Project signature?

For example:

• Notary envelope can support payloads other than JSON, like binary.
• Notary signature requires support for unsigned attributes.

[yizha1]

@yizha1 @toddysm can you clarify that when referring to the signature or envelope is it Notary signature or Notary Project signature?

For example:

• Notary envelope can support payloads other than JSON, like binary.

Notary Project signature envelope

• Notary signature requires support for unsigned attributes.

Notary Project signature

[FeynmanZhou]

Also, the project brand name is Notary Project instead of The Notary Project.