[README] Add SDK

app.py

@@ -1,5 +1,4 @@
 import asyncio
-import json
 import string
 from collections import Counter
 from itertools import count, tee
@@ -22,7 +21,8 @@ st.title("Table Detection and Table Structure Recognition")
 st.write(
     "Implemented by MSFT team: https://github.com/microsoft/table-transformer")
 
-config = Cfg.load_config_from_name('vgg_transformer')
+# config = Cfg.load_config_from_name('vgg_transformer')
+config = Cfg.load_config_from_name('vgg_seq2seq')
 config['cnn']['pretrained'] = False
 config['device'] = 'cpu'
 config['predictor']['beamsearch'] = True
@@ -404,7 +404,7 @@ class TableExtractionPipeline():
             df[col] = df[col].str.replace('}', '', regex=True)
         return df
 
-    # @st.cache
+    @st.cache
     def convert_df(self, df):
         return df.to_csv().encode('utf-8')