Add download to manifest

module.json

@@ -6,6 +6,7 @@
 	"version": "0.0.1",
 	"minimumCoreVersion": "0.6.5",
 	"scripts": [ "scripts/wallconvert.js" ],
-	"url": "https://git.bertieb.org/bertieb/foundry-walls-to-drawing"
-	"manifest": "https://git.bertieb.org/bertieb/foundry-walls-to-drawing/raw/branch/master/module.json"
+	"url": "https://git.bertieb.org/bertieb/foundry-walls-to-drawing",
+	"manifest": "https://git.bertieb.org/bertieb/foundry-walls-to-drawing/raw/branch/master/module.json",
+	"download": "https://git.bertieb.org/bertieb/foundry-walls-to-drawing/archive/0.0.1.zip"
 }