Add compliance/verification examples to README

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: vvillait88

README.md

@@ -28,6 +28,21 @@ base_rep = client.get_reputation("0x1234...", chain="base")
 # On-the-fly assessment with policy (paid)
 result = client.assess("0x1234...", policy={"min_grade": "B", "min_score": 35})
 print(result["decision"], result["decision_reasons"])
+
+# Compliance assessment with verification policy
+gated = client.assess("0x1234...", policy={
+    "require_kyc": True,
+    "require_sanctions_clear": True,
+    "min_age": 21,
+})
+
+if gated["decision"] == "deny":
+    print(gated["decision_reasons"])  # ["kyc_required"]
+    print(gated.get("verify_url"))    # URL for operator verification
+
+# Check verification level
+rep = client.get_reputation("0x1234...")
+print(rep.get("verification_level"))  # "none" | "wallet_claimed" | "kyc_verified"
 ```
 
 ### Async