Update: add output vep_vcf_summary

tasks/VEP.wdl

@@ -98,6 +98,7 @@ task VEP {
   output {
     File norm_vcf = "${basename}.norm.vcf"
     File vep_vcf = "${basename}.vep.vcf"
+    File vep_vcf_summary = "${basename}.vep.vcf_summary.html"
     File maf = "${basename}.maf"
   }
 }