Fix default app name in installation output

Author: Nuru

rootfs/usr/local/bin/boot

@@ -39,7 +39,7 @@ color "#   docker run --rm ${DOCKER_IMAGE:-cloudposse/geodesic}:${version} init
 color "#"
 color "# After that, you should be able to launch Geodesic just by typing"
 color "#"
-color "#   ${APP_NAME:-$(basename ${DOCKER_IMAGE:-Geodesic})}"
+color "#   ${APP_NAME:-$(basename ${DOCKER_IMAGE:-geodesic})}"
 color "#"
 color "########################################################################################"
 echo