Update app.py

Fixing the over-indent error

app.py

@@ -7,7 +7,7 @@ from tools.final_answer import FinalAnswerTool
 
 from Gradio_UI import GradioUI
 
-# Below is an example of a tool that does nothing. Amaze us with your creativity !
+# Below is a tool that gets a list of books from an app I built on Replit
 @tool
 def get_bookbrain()-> str: 
     #Keep this format for the description / args / args description but feel free to modify the tool
@@ -37,7 +37,7 @@ def get_bookbrain()-> str:
                 f"Title: {title}\nAuthor: {author}\nTopics: {topics}\nSummary: {summary}"
             )
             
-            return "\n\n---\n\n".join(books_str_list) if books_str_list else "No books found."
+        return "\n\n---\n\n".join(books_str_list) if books_str_list else "No books found."
     except Exception as e:
         return f"Failed to fetch books from BookBrain due to: {str(e)}"