Update README.md

Author: andrextor

README.md

@@ -1,4 +1,3 @@
-
 # **Checkout-P2P Python Integration Library**
 
 [![pypi](https://img.shields.io/pypi/v/checkout-p2p.svg)](https://pypi.org/project/checkout-p2p/)
@@ -73,8 +72,6 @@ print("Redirect to:", response.process_url)
 3.Query a Payment Request
 
 ```python
-
-
 query_response = checkout.query(123456)  # Replace with your request ID
 
 print("Request Status:", query_response.status)
@@ -83,13 +80,27 @@ print("Request Status:", query_response.status)
 4.Reverse a Payment
 
 ```python
-
 # Reverse a transaction. Returns a `ReverseResponse` object.
 reverse_response = checkout.reverse("internal_reference")
 
 print("Reverse Status:", reverse_response.status)
 ```
 
+5.Invalidate token
+
+```python
+invalidate_token_request = {
+        "locale": "en_US", 
+        "instrument": {"token" : {"token" : "your_token_c5583922eccd6d2061c1b0592b099f04e352a894f37ae51cf1a"}}
+}
+
+# invalite token. Returns a `Status` object.
+invalidate_response = checkout.invalidate_token(invalidate_token_request)
+
+print("Invalidate Status:", invalidate_response.status)
+print("Message:", invalidate_response.message)
+```
+
 ## **License**
 
 This project is licensed under the MIT License. See the [LICENSE](LICENSE.txt) file for details.