Merge pull request #8 from adrianprzybyla/patch-1

Fix typo

Author: roeib

README.md

@@ -120,7 +120,7 @@ console.log(muatatedArray) //['a','b','d','e']
 
 //Non-mutating way
 const nonMuatatedArray = ['a','b','c','d','e'];
-const newArray = nonMuatatedArray.filter((item'index) => !( index === 2 ));
+const newArray = nonMuatatedArray.filter((item, index) => !( index === 2 ));
 console.log(newArray) //['a','b','d','e']
 ```