Update bwa.wdl

bwa.wdl

@@ -37,7 +37,7 @@ task Mem {
         Int? memoryGb
         Int threads = 4
         Int timeMinutes = 1 + ceil(size([read1, read2], "G") * 220 / threads)
-        # Contains bwa 0.7.17 bwakit 0.7.17.dev1 and samtools 1.10
+        # Contains bwa 0.7.17 bwakit 0.7.17.dev1 and samtools 1.10.
         String dockerImage = "quay.io/biocontainers/mulled-v2-ad317f19f5881324e963f6a6d464d696a2825ab6:c59b7a73c87a9fe81737d5d628e10a3b5807f453-0"
     }