README update

README.md

@@ -57,7 +57,7 @@ Easily reference the library in your Android projects using this dependency in y
 
 ```Groovy
 dependencies {
-    compile 'com.afollestad:material-dialogs:0.5.4'
+    compile 'com.afollestad:material-dialogs:0.5.5'
 }
 ```