更新 'README.md'

README.md

@@ -30,6 +30,9 @@ $ choppy apps
 ```
 # 准备 samples.csv 文件
 $ choppy samples chenqingwang/lncRNAseq-latest > samples.csv
+# 准备无默认参数的samples.csv 文件
+choppy samples --no-default chenqingwang/lncRNAseq-latest > samples.csv
+
 
 # 提交任务
 $ choppy batch jchenqingwang/lncRNAseq-latest samples.csv -p Your_project_name -l Your_label