revise readme

inputs

@@ -1,5 +1,6 @@
 {
   "{{ project_name }}.raw_name": "{{ raw_name }}",
   "{{ project_name }}.new_name": "{{ new_name }}",
+  "{{ project_name }}.docker": "registry.cn-shanghai.aliyuncs.com/pgx-docker-registry/sentieon-genomics:v2018.08.01",
   "{{ project_name }}.disk_size": "{{ disk_size }}"
 }