Update README with Kani proofs

Update README with existing Kani proofs.

Signed-off-by: Matias Ezequiel Vara Larsen <[email protected]>

Author: MatiasVara

README.md

@@ -107,6 +107,15 @@ need to unblock the pipeline by following the Buildkite run link in the PR and
 click on the corresponding
 [unblock pipeline button](https://buildkite.com/docs/pipelines/block-step).
 
+## Kani proofs
+We run Kani proofs for each PR and on merges to the main branch. The proofs
+check conformance of the virtio-queue implementation to requirements from the
+virtio specification. Different than a unit test, a proof is checked for every
+possible input thus enforcing conformance. This is a list of the existing
+conformance proofs:
+
+* Conformance to 2.7.7.2 section
+
 ## License
 
 This project is licensed under either of