adding Dgraph explanantions

README.md

@@ -66,6 +66,24 @@ elasticsearch:
 
 ```
 
+## Dgraph Interface
+
+You can connect to the Dgraph interface at this default address: localhost:8000.
+There you would be able to run GraphQL+ queries, here to query a node.
+
+```graphql
+query {
+  Node(func: eq(id, "node--cde8decb-0a8b-4d19-bd77-c2decb6dab9c")) {
+    uid
+    ndata
+    modified
+    type
+    id
+  }
+}
+
+```
+
 ## Datastructure
 
 ### Meta
@@ -92,7 +110,6 @@ type Edge struct {
 
 ```
 
-
 ### Certstream
 
 Node --[Edge]-- CertNode --[Edge]-- CertStreamRaw