edited text to explain copying of file

Author: John Yaist

samples/05_content_publishers/updating_features_in_a_feature_layer.ipynb

@@ -237,7 +237,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "Let's add this `csv` as a portal item. Adding the item creates a CSV item and uploads the original file to the portal, establishing a link between the item and the original file name. Therefore, we need a unique name for the file to guarantee it does not collide with any file so the same name uploaded by the same user. We'll use standard library modules to copy the file and give it a new name so we can add it to the portal"
+    "Let's add this `csv` as a portal item. Adding the item creates a CSV item and uploads the original file to the portal, establishing a link between the item and the original file name. Therefore, we need a unique name for the file to guarantee it does not collide with any file of the same name that may have been uploaded by the same user. We'll use standard library modules to copy the file and give it a new name so we can add it to the portal"
    ]
   },
   {