fix: add handler indexes

handlers/index.ts

@@ -0,0 +1,9 @@
+import * as markdown from './markdown.ts';
+import * as static_files from './static.ts';
+import * as typescript from './typescript.ts';
+
+export default {
+	markdown,
+	static: static_files,
+	typescript
+};

tests/handlers/index.ts

@@ -0,0 +1,5 @@
+import * as foo from './foo.ts';
+
+export default {
+	foo
+};