[gnome-internet-radio-locator] Describe map marker playback functionality

[Ole Aamot <ole src gnome org>]

commit 08049592c2bb40f71f7322c529f1914bcca0412e
Author: Ole Aamot <ole gnome org>
Date:   Tue May 22 01:47:27 2018 +0200

    Describe map marker playback functionality

 README | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/README b/README
index eab396c..258370d 100644
--- a/README
+++ b/README
@@ -11,7 +11,8 @@ gstreamer 1.0 for audio playback.
 
 You can view all the stations in src/gnome-internet-radio-locator.xml
 and enter city names in the GUI search input field in order to locate
-radio stations in the city using the text search with auto-completion.
+radio stations in the city using the text search with auto-completion
+or click on one of the city marker in the map to listen to a station.
 
 To launch the program, you can click on Activities in GNOME 3 and enter