Add NGT acknowledgement to docs

[JanFSchulte]

NGT support was acknowledged in the README, but not the docs website. Also added another ERC grant number and the new paper.

Type of change

• Documentation update
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• A new research paper code implementation
• Other (Specify)

Tests

Looks good locally.

Checklist

• Yes