fix uninitialized var

app.py

@@ -89,7 +89,7 @@ def process(file_name, embed_html_all):
     output_csv = f"{file_name}_results.csv"
     with open(output_csv, "w") as w:
         writer = csv.writer(w)
-        num_results = 0
+        header = False
         for top in tops:
             if len(formated) / 2 >= max_output:
                 break