Update Makefile

Author: moul

Makefile

@@ -15,6 +15,6 @@ DEFAULT_IMAGE_ARCH = x86_64
 ## Image tools  (https://github.com/scaleway/image-tools)
 all:	docker-rules.mk
 docker-rules.mk:
-	wget -qO - http://j.mp/scw-builder | bash
+	wget -qO - https://j.mp/scw-builder | bash
 -include docker-rules.mk
 ## Below you can add custom makefile commands and overrides