README update

Author: jalakoo

README.md

@@ -1,5 +1,5 @@
 # Neo4j-uploader
-For uploading specially formatted dictionary data to a Neo4j database instance
+For uploading specially formatted dictionary data to a specific Neo4j database instance
 
 ## Dictionary Format
 Either a .json or dictionary can be passed as an arg into the upload() function.
@@ -9,4 +9,50 @@ The value for the `nodes` key must be a dictionary, where each key is the primar
 
 The value for the `relationships` key must be a dictionary, where each key is relationship type. The value of each is a list of dictionaries that are the relationship properties to upload.
 
-See the `samples/data.json` file for an example.
+Every record dictionary must have `_uid` key and the relationships must have a `_from__uid` and `_to__uid` key.
+
+Example .json:
+```
+{
+    "nodes": {
+      "Person": [
+        {
+          "first_name": "Jaclyn",
+          "last_name": "Stacey",
+          "email": "{'reference': ['first_name']}.{'reference': ['last_name']}@email.com",
+          "_uid": "b267e10d-998b-4804-b5a5-fe84b9ee982a"
+        },
+        {
+          "first_name": "Ryan",
+          "last_name": "Adam",
+          "email": "{'reference': ['first_name']}.{'reference': ['last_name']}@email.com",
+          "_uid": "0053fd25-71e4-40c1-80ff-f6b7e4211c77"
+        }
+      ]
+    },
+    "relationships": {
+      "LIVES_WITH": [
+        {
+          "_from__uid": "b267e10d-998b-4804-b5a5-fe84b9ee982a",
+          "_to__uid": "0053fd25-71e4-40c1-80ff-f6b7e4211c77",
+          "_uid": "9db12425-0eba-47cf-8654-84ad235f98c1"
+        }
+      ]
+    }
+  }
+```
+
+## Usage
+`pip install neo4j-uploader`
+
+In your application
+```
+from neo4j_uploader import upload
+
+credentials = ("database_uri", "user", "password")
+data = ...<dictionary_or_json_payload>
+upload(credentials, data)
+```
+
+## Limitations
+This package currently requires the .json data payload to be strictly formatted to the above requirements.