Update app.py

app.py

@@ -260,7 +260,7 @@ async def send_email_with_attachment(recipient_email, subject, body, attachment_
             VALIDATE_CERTS = True
         )
         
-        html = """<p>Hi this test mail, thanks for using Fastapi-mail</p> """
+        html = <p>Hi this test mail, thanks for using Fastapi-mail</p> 
         
         message = MessageSchema(
             subject="Fastapi-Mail module",