Moved go generate data into html5 dir

html5/defs.json

@@ -0,0 +1,18 @@
+{
+  "attributes": [
+    {"name": "disabled", "type": "bool"},
+    {"name": "id", "type": "string"},
+    {"name": "src", "type": "string"}
+  ],
+  "elements": [
+    {"name": "body"},
+    {"name": "div"},
+    {"name": "head"},
+    {"name": "html"},
+    {"name": "img", "empty": true},
+    {"name": "li"},
+    {"name": "span"},
+    {"name": "title"},
+    {"name": "ul"}
+  ]
+}

html5/html5.go

@@ -1,5 +1,7 @@
 package html5
 
+//go:generate go run ../internal/codegen/codegen.go -input defs.json -output generated.go -package html5 -import
+
 import "gitlab.codemonkeysoftware.net/b/hatmill"
 
 // Data creates an attribute of the form "data-suffix='value'".