change WFs names

workflows/RnaSeqDemo/RnaSeqDemo.yaml

 {
-name: "workflow_62354",
-docker_name: "workflow_62354",
-description: "My workflow",
+name: "RnaSeqDemo",
+docker_name: "RnaSeqDemo",
+description: "RnaSeq DE demo",
 version: "0.0.1",
 author: "MBB",
 options: [