Update README.md

Author: Bunlong

README.md

@@ -28,7 +28,7 @@ We concentrate on the language itself here, with the minimum of environment-spec
 
 2.6 [Type Conversions](https://github.com/Bunlong/The-Modern-JavaScript-Tutorial/wiki/2.6-Type-Conversions) 
 
-2.7 Operators
+2.7 [Operators](https://github.com/Bunlong/The-Modern-JavaScript-Tutorial/wiki/2.7-Operators)
 
 2.8 Comparisons