docs: give an example of how icons work

README.md

@@ -3,8 +3,6 @@
 Some bash wrappers around nativefier to generate standalone electron apps and have them
 installed as desktop apps.
 
-## Usage
-
 ```
 mknative
 ========
@@ -42,6 +40,37 @@ mknative -n example-app -s https://example.com
 it will look for an example-app.png file in `~/.local/share/mknative/icons/`.
 Just download the icon for the site and place it there before running.
 
+If you supply the `-i` argument, it will reach out to the favicongrabber.com API and give
+you a list of things that look like icons on the home page of the domain you specify and
+save it to your icons folder for you.
+
+Here's an example of how that looks for a Plex.tv app.
+
+```
+$ mknative -s https://app.plex.tv/desktop -n plex.with.parts -i plex.tv 
+
+mknative
+========
+URL: https://app.plex.tv/desktop
+Name: plex.with.parts
+Icon Domain: plex.tv
+
+Fetching potential icons using favicongrabber.com API (retry if fails, flaky API )...
+Here's the icons I found, which would you like?
+  0) https://www.plex.tv/wp-content/themes/plex/assets/img/favicons/favicon-32x32.png
+  1) https://www.plex.tv/wp-content/themes/plex/assets/img/favicons/favicon-16x16.png
+  2) https://www.plex.tv/wp-content/themes/plex/assets/img/favicons/apple-touch-icon-144x144.png
+  3) https://www.plex.tv/wp-content/themes/plex/assets/img/favicons/apple-touch-icon-152x152.png
+  4) https://www.plex.tv/wp-content/themes/plex/assets/img/favicons/mstile-144x144.png
+
+Selection: 2 
+
+getting https://www.plex.tv/wp-content/themes/plex/assets/img/favicons/apple-touch-icon-144x144.png
+
+...
+
+```
+
 Then check out your application launcher for example-app.
 
 ## Uninstalling apps