doc: add tutorial to verify tracee signature

docs/tutorials/verify-tracee-signature.md

@@ -0,0 +1,16 @@
+# Cosign: verify tracee signature
+
+
+## Prerequisites
+
+Before you begin, ensure that you have the following:
+
+- [cosign](https://docs.sigstore.dev/cosign/installation/)
+
+## Verify tracee signature
+
+Tracee images are signed with cosign keyless. To verify the signature we can run the command:
+
+```console
+cosign verify aquasec/tracee:{{ git.tag }  --certificate-oidc-issuer https://token.actions.githubusercontent.com --certificate-identity-regexp https://github.com/aquasecurity/tracee | jq
+```