Added before you start info

Author: sohamkamani

README.md

@@ -28,6 +28,14 @@ Wikipedia describes them as
 - Do not try to force them bad things are supposed to happen, if done so. Keep in mind that design patterns are solutions **to** problems, not solutions **finding** problems so don't overthink.
 - If used in a correct place in a correct manner, they can prove to be a savior or else they can result in a horrible mess of a code.
 
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+## 🐢 Before you start
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+- All design patterns have been implemented in [ES6](https://github.com/lukehoban/es6features), the new version of javascript.
+- Since javascript does not have any implementation of interfaces, the examples here use implied interfaces, which means that as long as a class has attributes and methods that a particular interface is supposed to have, it is considered to implement that interface. To make it easier to tell the interface we are using, its information can be found in the comments of every example.
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 Types of Design Patterns
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