Update README.md

Author: aMahanna

README.md

@@ -2,6 +2,8 @@
 Package for loading example datasets into an ArangoDB Instance.
 
 ```py
+# pip install arango-datasets
+
 from arango import ArangoClient
 from arango_datasets import Datasets
 
@@ -18,4 +20,4 @@ print(datasets.dataset_info("IMDB_X"))
 
 # Import the dataset
 datasets.load("IMDB_X")
-```
+```