refactor countChar function for improved readability

Author: alexandru-pocovnicu

Sprint-3/2-practice-tdd/count.js

@@ -1,7 +1,7 @@
 function countChar(stringOfCharacters, findCharacter) {
-  let char=0;
-  for(let i=0;i<stringOfCharacters.length;i++){
-    if(stringOfCharacters[i]===findCharacter){
+  let char = 0;
+  for(let i = 0;i < stringOfCharacters.length;i++){
+    if(stringOfCharacters[i] === findCharacter){
       char++;
     }
   }