Merge pull request #163 from flatironinstitute/text-hint-for-data-json-2

Add placeholder text for empty content in data.json (2)

gui/src/app/pages/HomePage/HomePage.tsx

@@ -147,6 +147,7 @@ const LeftView: FunctionComponent<LeftViewProps> = ({
           })
         }
         readOnly={false}
+        contentOnEmpty={"Enter JSON data or use the data generation tab"}
       />
     </Splitter>
   );