Changed title from Memory / Memory management to just Memory management

Author: onthecodepath

README.md

@@ -31,7 +31,7 @@ Use the Table of Contents to practice and test your knowledge. It doesn't show t
     - What is the difference between not-running, inactive, active, background and suspended execution states?
     - Is it faster to iterate through an NSArray or an NSSet?
     - What is KVO?
-- [Memory / Memory Management](https://github.com/onthecodepath/iOS-Interview-Questions#memory--memory-management)
+- [Memory Management](https://github.com/onthecodepath/iOS-Interview-Questions#memory-management)
     - Why do you generally create a weak reference when using self in a block?
     - What is memory management handled on iOS?
     - What is the difference between *weak* and *strong*?
@@ -200,7 +200,7 @@ It depends. NSSet is faster to iterate through if the order of the items in the
 
 KVO stands for *Key-Value Observing*. It allows a controller or class to *observe* when a property value changes. 
 
-## Memory / Memory Management
+## Memory Management
 
 #### Why do you generally create a weak reference when using self in a block?