Fix spelling of “entirely” in brackets problem

Author: blakeembrey

problems/balanced-brackets/Readme.md

@@ -1,6 +1,6 @@
 # Balanced Brackets
 
-Write a function that accepts a string consisting entiring of brackets (`[](){}`) and returns whether it is balanced. Every "opening" bracket must be followed by a closing bracket of the same type. There can also be nested brackets, which adhere to the same rule.
+Write a function that accepts a string consisting entirely of brackets (`[](){}`) and returns whether it is balanced. Every "opening" bracket must be followed by a closing bracket of the same type. There can also be nested brackets, which adhere to the same rule.
 
 ```js
 f('()[]{}(([])){[()][]}') // true