Some changes

Codecademy.playground/Pages/Factorial.xcplaygroundpage/Contents.swift

@@ -27,7 +27,7 @@ while num != 0 {
 }
 
 print(result)
-// factorial using reppeat while
+// factorial using repeat while
 
 num = 5
 result = 1

Codecademy.playground/Pages/Polindrome.xcplaygroundpage/Contents.swift

@@ -0,0 +1,56 @@
+var text = ["h", "e", "l", "l", "o"]
+var reversed = [String]()
+var counter = text.count - 1
+
+while counter >= 0 {
+    reversed.append(text[counter])
+    counter -= 1
+
+}
+    if text == reversed {
+        print("We have a palindrome!")
+    } else {
+        print("We don’t have a palindrome")
+    }
+
+/*
+ //with for in usage
+
+ var text = ["h", "e", "l", "l", "e", "h"]
+ var reversed = [String]()
+ var counter = text.count - 1
+
+ for x in 0 ..< text.count {
+     if x >= 0 {
+         reversed.append(text[counter])
+         counter -= 1
+     }
+ }
+     if text == reversed {
+         print("We have a palindrome!")
+     } else {
+         print("We don’t have a palindrome")
+     }
+
+
+ //with stride usage
+
+ var text = ["h", "e", "l", "l", "e"]
+ var reversed = [String]()
+ var counter = text.count - 1
+
+ for x in stride (from: 0, to: text.count, by: 1){
+     if x >= 0 {
+         reversed.append(text[counter])
+         counter -= 1
+     }
+ }
+     if text == reversed {
+         print("We have a palindrome!")
+     } else {
+         print("We don’t have a palindrome")
+     }
+
+
+
+ */