added readme

Author: Denis Buzmakov

brackets/README.md

@@ -0,0 +1,11 @@
+## Balanced Parentheses
+
+### Description
+Given a sequence consisting of parentheses, determine whether the expression is balanced. A sequence of parentheses is balanced if every open parenthesis can be paired uniquely with a closed parenthesis that occurs after the former. Also, the interval between them must be balanced. You will be given three types of parentheses: (, {, [.
+
+`([{}])` - this is balanced parenthesis
+
+`([{]})` - this is not balanced parenthesis
+
+### Output
+Returns `yes` if balanced and `no` if not.