Add badges

Author: jason-fox

README.md

@@ -32,8 +32,8 @@ 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.Short-Term-History/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.Short-Term-History/) |
-| --- | --- | --- |
+| [![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.Short-Term-History/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.Short-Term-History/) | ![](https://img.shields.io/github/last-commit/fiware/tutorials.Short-Term-History/NGSI-v2)
+| --- | --- | --- | --- |
 
 ## NGSI-LD Smart Farm
 
@@ -48,8 +48,8 @@ git checkout NGSI-LD
 ./services start
 ```
 
-| [![NGSI LD](https://img.shields.io/badge/NGSI-LD-d6604d.svg)](https://www.etsi.org/deliver/etsi_gs/CIM/001_099/009/01.08.01_60/gs_cim009v010801p.pdf) | :books: [Documentation](https://github.com/FIWARE/tutorials.Short-Term-History/tree/NGSI-LD) | <img  src="https://cdn.jsdelivr.net/npm/simple-icons@v3/icons/postman.svg" height="15" width="15"> [Postman Collection](https://fiware.github.io/tutorials.Short-Term-History/ngsi-ld.html) |
-| --- | --- | --- |
+| [![NGSI LD](https://img.shields.io/badge/NGSI-LD-d6604d.svg)](https://www.etsi.org/deliver/etsi_gs/CIM/001_099/009/01.08.01_60/gs_cim009v010801p.pdf) | :books: [Documentation](https://github.com/FIWARE/tutorials.Short-Term-History/tree/NGSI-LD) | <img  src="https://cdn.jsdelivr.net/npm/simple-icons@v3/icons/postman.svg" height="15" width="15"> [Postman Collection](https://fiware.github.io/tutorials.Short-Term-History/ngsi-ld.html) | ![](https://img.shields.io/github/last-commit/fiware/tutorials.Short-Term-History/NGSI-LD)
+| --- | --- | --- | --- |
 
 ---