Update README.md

Author: JingweiToo

README.md

@@ -10,7 +10,7 @@
 
 ## Introduction
 
-* This toolbox offers more than 5 wrapper feature selection methods
+* This toolbox offers 7 wrapper feature selection methods
 * The Demo_PSO provides an example of how to apply PSO on benchmark dataset 
 * Source code of these methods are written based on pseudocode & paper
 
@@ -182,6 +182,7 @@ ax.grid()
 plt.show()
 ```
 
+
 ## Requirement
 
 * Python 3