Update README.md

ppstructure/table/README.md

-# Table structure
+# Table Recognition
 
 ## 1. pipeline
-The ocr of the table mainly contains three models
+The table recognition mainly contains three models
 1. Single line text detection-DB
 2. Single line text recognition-CRNN
 3. Table structure and cell coordinate prediction-RARE
 
-The table ocr flow chart is as follows
+The table recognition flow chart is as follows
 
 ![tableocr_pipeline](../../doc/table/tableocr_pipeline_en.jpg)
 
@@ -94,4 +94,4 @@ python3 table/eval_table.py --det_model_dir=path/to/det_model_dir --rec_model_di
 cd PaddleOCR/ppstructure
 python3 table/predict_table.py --det_model_dir=path/to/det_model_dir --rec_model_dir=path/to/rec_model_dir --table_model_dir=path/to/table_model_dir --image_dir=../doc/table/1.png --rec_char_dict_path=../ppocr/utils/dict/table_dict.txt --table_char_dict_path=../ppocr/utils/dict/table_structure_dict.txt --rec_char_type=EN --det_limit_side_len=736 --det_limit_type=min --output ../output/table
 ```
-After running, the excel sheet of each picture will be saved in the directory specified by the output field
\ No newline at end of file
+After running, the excel sheet of each picture will be saved in the directory specified by the output field