readme fix

Author: Zoran Pavlovic

README.md

@@ -5,7 +5,7 @@ The main goal of this library is to reduce boilerplate code when you work with S
 
 # Usage
 First you do need to initalize this libarary inside onCreate of the Application class of your project.
-
+```Java
 public class UniversalPreferencesApplication extends Application {
 
     @Override
@@ -14,31 +14,35 @@ public class UniversalPreferencesApplication extends Application {
         UniversalPreferences.initialize(this);
     }
 }
-
+```
 Now you can use UniversalPreferences library in any class of your project.
 
 UniversalPreferences library is "universal" at accepting object types, so there is only one method to store and only one method to retrive values.
-
+```Java
 // Store and retrive String
 UniversalPreferences.getInstance().put("string", "some value");
 String string =  UniversalPreferences.getInstance().get("string");
-
+```
+```Java
 // Store and retrive Integer
 UniversalPreferences.getInstance().put("int", 30);
 int value =  UniversalPreferences.getInstance().get("int");
-
+```
+```Java
 // Store and retrive Float
 UniversalPreferences.getInstance().put("float", 3.0f);
 float valueFloat = UniversalPreferences.getInstance().get("float");
-
+```
+```Java
 // Store and retrive Boolean
 UniversalPreferences.getInstance().put("bool", true);
 boolean bool = UniversalPreferences.getInstance().get("bool");
-
+```
+```Java
 // Store and retrive Set<String>
 Set<String> set = new HashSet<String>();
 set.add("test 1");
 set.add("test 2");
 UniversalPreferences.getInstance().put("set", set);
 Set<String> savedSet = UniversalPreferences.getInstance().get("set");
-
+```