Update README.md

Author: dionisiydk

README.md

@@ -12,20 +12,25 @@ Objects borrowed from OPPool have following basic lifecycle:
 4. When objects is no longer usable (some lifecycle operation fails) or needed it is destroyed.
 
 To create pool for of OrderedCollections one could write:
-	OPBasicPool new
-		creator: [OrderedCollection new].
-	
+```Smalltalk
+OPBasicPool new
+	creator: [OrderedCollection new].
+```
 To get new collection from the pool:
-	pool withPooled: [:o| "Do something"].
-	
+```Smalltalk
+pool withPooled: [:o| "Do something"].
+```	
 To also clear collections when they are returned add passivator
-	pool passivator:[:o|o removeAll].
-	
+```Smalltalk
+pool passivator:[:o|o removeAll].
+```	
 Or to do that before borrow add activator:
-	pool activator:[:o|o removeAll].
-	
+```Smalltalk
+pool activator:[:o|o removeAll].
+```
 To validate objets before borrow add following. Objects that do not validate are destroyed.
-	pool validator:[:o|o size = 0].
-	
+```Smalltalk
+pool validator:[:o|o size = 0].
+```
 One can set maximum size of pool with #maxIdleIbjects. See more about pool configuration
 in documentation of OPBasicPool.