fix: Update README with TMF645

chore: updates

Merge pull request #17 from rruckley/bug-get-serial-16

Fix: get serialisation bug

Merge pull request #15 from rruckley/SegAgentHeaders-14

feat: Add User-Agent header to GET

Merge pull request #13 from rruckley/TMFFeatureParity-12

feat: Create Feature Parity with Platypus

Merge pull request #10 from rruckley/TMF632-9

Tmf632 Support