Updates dockerfile to alter path of target folder

Updates dockerfile template to alter path of target folder to be in line with community and Sitecore convention

Author: chris-hmmr

dockerfile

@@ -1,4 +1,4 @@
 FROM mcr.microsoft.com/windows/nanoserver:1809 AS build
 
 # Copy assets into the image, keeping the folder structure
-COPY \ .\
+COPY \ \module