docs: update README to be auto-included in openfeature.dev (#560)

* chore: update README to be auto-included in openfeatre.dev
Signed-off-by: Todd Baert <[email protected]>
Co-authored-by: Michael Beemer <[email protected]>
Co-authored-by: Kavindu Dodanduwa <[email protected]>

Author: 3 people