readme formatting

java/4-events/readme.md

 ## Java event demos
 
-EventLoop.Java            Binding events by tapping into the low-level
- 			   			  java event queue	
+`EventLoop.Java`            
+Binding events by tapping into the low-level java event queue	
 
-InheritanceEvents.java	  Binding events by extending base class with
-						  event callback methods
+`InheritanceEvents.java`
+Binding events by extending base class with  event callback methods
 
-InterfaceEvents.java      Binding events by implementing event listener
-					      interface
+`InterfaceEvents.java`      
+Binding events by implementing event listener interface
 
-ListenerEvents.java    	  Binding events by creating a child object 
- 				    	  which implements the listener interface
+`ListenerEvents.java`    	  
+Binding events by creating a child object which implements the listener interface
 
-AdapterEvents.java    	  Binding events by creating a child listener 
-	 				      adapter object
+`AdapterEvents.java`    	  
+Binding events by creating a child listener adapter object
 
 			    	  
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