Add example

Signed-off-by: Yohanna Lisnichuk <[email protected]>

Author: yolile

README.md

@@ -14,6 +14,41 @@ However, in cases where it is important to track documents on a milestone-by-mil
 
 Depending on the nature of the documents, publishers should consider duplicating information in the parent sections documents block also.
 
+## Worked Example
+
+During the implementation of a contract, the buyer set different milestones that the supplier must met. Each of these milestone could has an associated document that offers more details about the met milestone, for example a consultancy report
+
+```json
+{
+  "contracts": [
+    {
+      "implementation": {
+        "milestones": [
+          {
+            "id": "fcrMXKIb3/o=",
+            "title": "Informe de Consultoria",
+            "type": "reporting",
+            "dueDate": "2020-02-13T00:00:00-04:00",
+            "dateMet": "2020-02-14T00:00:00-04:00",
+            "status": "met",
+            "documents": [
+              {
+                "id": "QQ1cjJZ82Rk=",
+                "url": "https://www.contrataciones.gov.py/documentos/download/contrato_detalle_entregable/vki7v5RKGrA%253D",
+                "datePublished": "2020-02-17T13:38:25-04:00",
+                "language": "es",
+                "title": "informe_n__13_1581957505348.pdf",
+                "format": "application/pdf"
+              }
+            ]
+          }
+        ]
+      }
+    }
+  ]
+}
+```
+
 ## Issues
 
 Report issues for this extension in the [ocds-extensions repository](https://github.com/open-contracting/ocds-extensions/issues), putting the extension's name in the issue's title.