Fixed 'Behavioral' heading

Author: jleft

README.md

@@ -14,7 +14,8 @@ A short cheat-sheet with Xcode 6 Playground ([Design-Patterns.playground.zip](ht
 * [Behavioral](#behavioral)
 * [Creational](#creational)
 * [Structural](#structural)
-#Behavioral
+
+# Behavioral
 
 >In software engineering, behavioral design patterns are design patterns that identify common communication patterns between objects and realize these patterns. By doing so, these patterns increase flexibility in carrying out this communication.
 >
@@ -1041,4 +1042,4 @@ Info
 
 📖 Descriptions from: [Gang of Four Design Patterns Reference Sheet](http://www.blackwasp.co.uk/GangOfFour.aspx)
 
-🚀 How to generate playground (+zip) from this README: [GENERATE.markdown](https://github.com/ochococo/Design-Patterns-In-Swift/blob/master/GENERATE.markdown)
+🚀 How to generate playground (+zip) from this README: [GENERATE.markdown](https://github.com/ochococo/Design-Patterns-In-Swift/blob/master/GENERATE.markdown)