Update app.py

app.py

@@ -518,7 +518,8 @@ def extract_keywords_from_text(text, query_words):
     return matched_lines
 
 def clean_text(text):
-    return re.sub(r'[^آ-ی۰-،.؟!؛+\-* ]+', '', text)
+    return re.sub(r'[^آ-ی0-9۰-۹،.؟!؛+\-* ]+', '', text)
+
 
 
 from collections import Counter