fixed some spellings

Bit-Manipulation/BinaryCountSetBits.js

@@ -3,13 +3,13 @@
     license: GPL-3.0 or later
 
     This script will find number of 1's
-    in binary representain of given number
+    in binary representation of given number
 
 */
 
 function BinaryCountSetBits (a) {
   'use strict'
-  // convert number into binary representation and return number of set bits in binary representaion
+  // convert number into binary representation and return number of set bits in binary representation
   return a.toString(2).split('1').length - 1
 }