gave explanation on the error message and wrote a code to fix the error

Author: MaharitB

Sprint-3/1-key-errors/0.js

@@ -3,11 +3,18 @@
 
 // call the function capitalise with a string input
 // interpret the error message and figure out why an error is occurring
-// 
+//It says syntax error Identifier 'str' has already been declared. 
+// function parameter and let which is inside the funtion can never 
+// be the same because both variables are in the same scope
 function capitalise(str) {
   let str = `${str[0].toUpperCase()}${str.slice(1)}`;
   return str;
 }
 console.log(capitalise("error")
 // 
-// =============> write your new code here
+// function capitalise(firstLetter){
+//  let str =`${str[0].toUpperCase()${str.slice(1)}`;
+//  return str;
+// }
+//
+