Update 'defaults'

defaults

@@ -5,5 +5,5 @@
     "count_hdf5":"oss://pgx-source-data/CBCGA2020/RNA-seq/intermediate-results-temp/Alternative_Splicing/spladder/single_count_hdf5/",
     "spladder_docker":"registry.cn-shanghai.aliyuncs.com/pgx-docker-registry/spladder:v2.4.2",
     "spladder_cluster":"OnDemand bcs.a2.7xlarge img-ubuntu-vpc",
-    "disk_size":"500"
+    "disk_size":"200"
     }