add pip freeze

app.py

@@ -10,7 +10,7 @@ def main ():
     print("------------------------------")
     print(f"Running main")
 
-    print(subprocess.Popen('pip list', shell=True))
+    print(subprocess.Popen('pip freeze > requirements_hug.txt', shell=True))
     s2t = init_model_trans()
     ner = init_model_ner() #async