Update readme

Signed-off-by: Jael Gu <mengjia.gu@zilliz.com>

README.md

@@ -17,9 +17,8 @@ This operator is implemented with pre-trained models from [Huggingface Transform
 Use the pre-trained model 'distilbert-base-cased'
 to generate a text embedding for the sentence "Hello, world.".
 
-*Write a same pipeline with explicit inputs/outputs name specifications:*
+*Write a pipeline with explicit inputs/outputs name specifications:*
 
-- **option 1 (towhee>=0.9.0):**
 ```python
 from towhee.dc2 import pipe, ops, DataCollection
 
@@ -34,18 +33,6 @@ DataCollection(p('Hello, world.')).show()
 
 <img src="./result.png" width="800px"/>
 
-- **option 2:**
-
-```python
-import towhee
-
-(
-    towhee.dc['text'](["Hello, world."])
-          .text_embedding.transformers['text', 'vec'](model_name="distilbert-base-cased")
-          .show()
-)
-```
-
 <br />
 
 ## Factory Constructor