更新 'README.md'

README.md

@@ -33,26 +33,20 @@ $ choppy apps
 
 ```
 # 准备 samples.csv 文件
-
 $ choppy samples chenqingwang/fastp_suppa2-latest > samples.csv
 
 # 准备无默认参数的samples.csv 文件
-
-choppy samples --no-default chenqingwang/fastp_suppa2-latest > samples.csv
+$ choppy samples --no-default chenqingwang/fastp_suppa2-latest > samples.csv
 
 # 提交任务
-
 $ choppy batch chenqingwang/fastp_suppa2-latest samples.csv -p Your_project_name -l Your_label
 
 # 查询任务运行状况
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 $ choppy query -L Your_label | grep "status"
 
 # 查询失败任务
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 $ choppy search -s Failed -p Your_project_name -u chenqingwang --short-format
 
 # 结果文件地址
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 $ oss://choppy-cromwell-result/test-choppy/Your_project_name/
 ```