Added show_help() method.

sigmoid_check/python_odyssey/lesson_10/lesson.py

@@ -445,4 +445,23 @@ def check_task_24(self, func):
     def get_completion_percentage(self):
         """Return the completion percentage of the tasks"""
         completed = sum([1 for task in self.status_tasks if self.status_tasks[task]])
-        return f"Your completion percentage is {completed * 100 / len(self.status_tasks)}%"
+        return f"Your completion percentage is {completed * 100 / len(self.status_tasks)}%"
+
+
+def show_help():
+    help_text = """
+    Welcome to the Exercise Testing Library!
+
+    This library is designed to help you test your solutions to various exercises.
+
+    How to Use:
+    - Each class in this library corresponds to a specific lesson.
+    - To test your solution, instantiate the class and call the `check_task_task-number` method, passing your function as an argument.
+
+    Example:
+        lesson = Lesson10()
+        print(lesson.check_task_1(my_function))
+
+    Enjoy the process!
+    """
+    print(help_text)