更新 'README.md'

README.md

 choppy samples --no-default chenqingwang/SplAdder-merge-latest > samples.csv
 
 # 提交任务
-$ choppy batch chenqingwang/SplAdder-merge-latest samples.csv -p Your_project_name -l Your_label
+$ choppy batch chenqingwang/SplAdder-merge-latest samples.json -p Your_project_name -l Your_label
 
 # 查询任务运行状况
 $ choppy query -L Your_label | grep "status"
 
 # 结果文件地址
 $ oss://choppy-cromwell-result/test-choppy/Your_project_name/
-```
+```
+
+#### Input File
+Input file samples.json should be in the form of json. For example:
+```
+{
+	"bam": [
+          "oss://choppy-cromwell-result/test-choppy/..._xxx.bam",
+          "oss://choppy-cromwell-result/test-choppy/..._xxx.bam",
+          "oss://choppy-cromwell-result/test-choppy/..._xxx.bam"
+        ],
+    "bai": [
+          "oss://choppy-cromwell-result/test-choppy/..._xxx.bai",
+          "oss://choppy-cromwell-result/test-choppy/..._xxx.bai",
+          "oss://choppy-cromwell-result/test-choppy/..._xxx.bai"
+        ],
+     "pickle": [
+          "oss://choppy-cromwell-result/test-choppy/..._xxx.pickle",
+          "oss://choppy-cromwell-result/test-choppy/..._xxx.pickle",
+          "oss://choppy-cromwell-result/test-choppy/..._xxx.pickle"
+        ],
+	"sample_id": "B13150xx"
+}
+```
+PS: sample_id is necessary for Choppy system