added reverse tools

tools.py

@@ -53,7 +53,7 @@ def reverse_text(question: str) -> str:
     Args:
         question (str): The question that seemed to be written backward"
     """
-    reversed_candidate = question[::-1]
-    if question.strip() and question.strip()[0] in "?.!":
+    if question.strip()[0] in "?.!":
+        reversed_candidate = question[::-1]
         return reversed_candidate
     return "Text seems normal."