Update README.md

Author: jason-fox

README.md

@@ -29,7 +29,7 @@ git checkout NGSI-v2
 ./services start
 ```
 
-| [![NGSI v2](https://img.shields.io/badge/NGSI-v2-5dc0cf.svg)](https://fiware-ges.github.io/orion/api/v2/stable/) | :books: [Documentation](https://github.com/FIWARE/tutorials.PEP-Proxy/tree/NGSI-v2) |  | <img src="https://cdn.jsdelivr.net/npm/simple-icons@v3/icons/postman.svg" height="15" width="15"> [Postman Collection](https://fiware.github.io/tutorials.PEP-Proxy/) |
+| [![NGSI v2](https://img.shields.io/badge/NGSI-v2-5dc0cf.svg)](https://fiware-ges.github.io/orion/api/v2/stable/) | :books: [Documentation](https://github.com/FIWARE/tutorials.PEP-Proxy/tree/NGSI-v2) |  <img src="https://cdn.jsdelivr.net/npm/simple-icons@v3/icons/postman.svg" height="15" width="15"> [Postman Collection](https://fiware.github.io/tutorials.PEP-Proxy/) |
 | --- | --- | --- |