revise readme

tasks/cat_rename.wdl

@@ -1,8 +1,8 @@
 task cat_rename {
 	File raw_name
 	String new_name
-	String cluster_config
 	String disk_size
+	String docker
 
 	command <<<
 		cat ${raw_name}/clean/*_1.fq.gz > ${new_name}_1.fq.gz
@@ -11,7 +11,6 @@ task cat_rename {
 
 	runtime {
 		docker:docker
-		cluster:cluster_config
 		systemDisk:"cloud_ssd 40"
 		dataDisk:"cloud_ssd " + disk_size + " /cromwell_root/"
 	}

workflow.wdl

@@ -2,7 +2,6 @@ import "./tasks/cat_rename.wdl" as cat_rename
 
 workflow {{ project_name }} {
 	String docker
-	String cluster_config
 	String disk_size
 	File raw_name
 	String new_name
@@ -12,7 +11,6 @@ workflow {{ project_name }} {
 			raw_name=raw_name,
 			new_name=new_name,
 			docker=docker,
-			disk_size=disk_size,
-			cluster_config=cluster_config
+			disk_size=disk_size
 	}
 }