Update readme to add new maintainers section

Author: aharris88 / aharris88

readme.md

@@ -7,6 +7,11 @@ The Android portion was forked from https://github.com/javatechig/phonegap-sms-p
 
 The iOS portion was copied from https://github.com/phonegap/phonegap-plugins by Jesse MacFadyen and then modified slightly to work with this plugin and phonegap 3.x.
 
+New maintainers
+===============
+
+I'm currently not able to support this plugin, and I'm willing to hand it over to new maintainers. See issue #53.
+
 Installation
 =================