update readme.md

location/readme.md

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 <img src="https://github.com/conversejs/community-plugins/blob/master/location/location.png?raw=true" />
 
 ## Overview
-This plugin publishes the geographic location of the user to xmpp pubsub as specified in XEP-0080. It also posts the location to the active chat or groupchat as an out of band (oob) url. 
+This plugin publishes and recieves the geographic location of the user to xmpp pubsub as specified in XEP-0080. It also posts the location to the active chat or groupchat as an out of band (oob) url and renders the url into a map using OpenStreetMap and leaflet.js. 
 
 ## Install
 see https://m.conversejs.org/docs/html/plugin_development.html on how to install this plugin
 
 ## How to use
-
+Click on the arrow icon to publish your deo location