Fix datasets API (no longer experimental)

Author: bdice

notebooks/algorithms/layout/Force-Atlas2.ipynb

@@ -206,7 +206,7 @@
     "    OPTIMIZE=True\n",
     "\n",
     "    # Import a built-in dataset\n",
-    "    from cugraph.experimental.datasets import netscience\n",
+    "    from cugraph.datasets import netscience\n",
     "\n",
     "    # Setup Viz\n",
     "    client = Client()\n",

readme_pages/property_graph.md

@@ -25,7 +25,7 @@ import cugraph
 from cugraph.experimental import PropertyGraph
 
 # Import a built-in dataset
-from cugraph.experimental.datasets import karate
+from cugraph.datasets import karate
 
 # Read edgelist data into a DataFrame, load into PropertyGraph as edge data.
 # Create a graph using the imported Dataset object