More detailed comments

app.py

@@ -9,7 +9,10 @@ download('au_vic_lg', 'saunteringcat/whereabouts-db')
 download('au_nsw_lg', 'saunteringcat/whereabouts-db')
 
 # create a matcher object
-matcher = Matcher('au_all_sm')
+matcher1 = Matcher('au_all_sm')
+matcher2 = Matcher('au_all_lg')
+matcher3 = Matcher('au_vic_lg')
+matcher4 = Matcher('au_all_sm')
 
 # function to geocode results
 def geocode(addresses):
@@ -24,7 +27,19 @@ interface_geocoder = gr.Interface(
     inputs=[text_input],
     outputs=[json_output],
     title="Geocode addresses using whereabouts",
-    description="Whereabouts is a freely available open-source geocoding package for Python. Enter some address data below and geocode the results."
+    description="""
+    Whereabouts is a freely available open-source geocoding package for Python. Currently it supports geocoding of Australian addresses, with more countries being added.
+    This demo shows whereabouts in action. 
+
+    The code is available on github:
+    https://www.github.com/ajl2718/whereabouts
+
+    Or you can install it using as follows
+    ```
+    pip install whereabouts
+    python -m whereabouts download au_all_sm
+    ```
+    """
 )
 
 demo = gr.TabbedInterface([interface_geocoder], ["Geocoding"])