modify README

Signed-off-by: gexy5 <xinyu.ge@zilliz.com>

README.md

@@ -32,6 +32,25 @@ import towhee
           .show()
 )
 ```
+<img src="./result1.png" height="px"/>
+
+*Write a same pipeline with explicit inputs/outputs name specifications*:
+
+```python
+import towhee
+
+(
+    towhee.glob['path']('./archery.mp4')
+          .video_decode.ffmpeg['path', 'frames']()
+          .action_classification.tsm['frames', ('labels', 'scores', 'features')](
+                model_name='tsm_k400_r50_seg8')
+          .select['path', 'labels', 'scores', 'features']()
+          .show(formatter={'path': 'video_path'})
+)
+```
+
+<img src="./result2.png" height="px"/>
+
 <br />
 
 ## Factory Constructor