move the pip install into requirements.txt

app.py

@@ -1,6 +1,6 @@
 import os
-os.system('pip install paddlepaddle')
-os.system('pip install paddleocr')
+# os.system('pip install paddlepaddle')
+# os.system('pip install paddleocr')
 from paddleocr import PaddleOCR, draw_ocr
 from PIL import Image
 import gradio as gr