Updates version to 2.0.1 and adds release notes

[sshivanii]

Signed-off-by: Shivani Shukla sshkamz@amazon.com

Description

• Updates version to 2.0.1
• Adds release notes for 2.0.1

Issues Resolved

Contributes as pre-release step of 2.0.1 #3139

Check List

• [ ] New functionality includes testing.
  • [ ] All tests pass
• [ ] New functionality has been documented.
  • [ ] New functionality has documentation added
• [ ] Commits are signed as per the DCO using --signoff

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