replaced f string with normal string

app.py

@@ -18,9 +18,9 @@ with st.form("request_form"):
     selected_model_name: str = st.text_input(
         label="Model name",
         value="gpt2",
-        help=f"The name of the model to use."
-             f"Supported models are all the models in:"
-             f" https://huggingface.co/models?pipeline_tag=text-generation&library=pytorch",
+        help="The name of the model to use."
+             "Supported models are all the models in:"
+             " https://huggingface.co/models?pipeline_tag=text-generation&library=pytorch",
     )
 
     output_length: int = st.number_input(