docs(README): update Data Structure section

README.md

@@ -99,19 +99,20 @@ Internally GeoFirestore creates multiple geohashes around a requested area. It t
 
 ### Data Structure
 
-GeoFirestore is based off of the `geofire` JavaScript library. Documents generated and stored in your Firestore collection by GeoFirestore are typed/structured as:
+Documents generated and stored in your Firestore collection by GeoFirestore are typed/structured as:
 
 ```TypeScript
 interface GeoDocument {
-    g: string;
-    l: GeoPoint;
-    d: DocumentData;
+  g: {
+    geohash: string;
+    geopoint: GeoPoint;
+  };
+  [field: string]: any;
   }
 ```
 
-- `g` is the geohash generated by the library, and is required in order to make the geoqery.
-- `l` is the GeoPoint used to generate the `g` field.
-- `d` is a sub-object which is where your data is stored.
+- `g.geohash` is the geohash generated by the library, and is required in order to make the geoqery.
+- `g.geopoint` is the GeoPoint used to generate the `g.geohash` field.
 
 Data must be structured this was in order to work, and is why you should use the GeoFirestore library to insert data in order to be able to query it.