changes use of copy.

- directory did not exist (misunderstanding of how the image got the files)

build.sh

@@ -7,4 +7,4 @@ set -x -e
 prjMakefilesGenerator.sh $1@$2 || exit 1
 make -C $1 CONF=$2 build || exit 2
 
-cp -r /$1/ /github/workspace/output
+cp -r /github/workspace/$1/ /github/workspace/output