Upload README.md with huggingface_hub

README.md

@@ -141,7 +141,7 @@ The format of the `video_meta_data/video_meta_data1.json`:
     },
 ```
 
-In addition, the `multimodal_textbook_meta_data.json.zip` records the textbook in its original format as follows.It is stored with "video clip" as a dict. Each sample includes multiple video clips: 
+In addition, the `multimodal_textbook_meta_data.json.zip` records the textbook in video clip-level. It is stored with "video clip" as a dict. Each sample includes multiple consecutive video clips from the same long video. Sometimes one sample may also include video clips from different long videos. When a long video ends, it will store `End of a Video`.
 
 ```
 {'token_num': 1657,