Move TypeScript definition to root

Author: squidfunk

jsx.d.ts

@@ -0,0 +1,13 @@
+import { VNode } from 'preact';
+
+interface Options {
+  jsx?: boolean;
+  xml?: boolean;
+  functions?: boolean
+  functionNames?: boolean,
+  skipFalseAttributes?: boolean
+  pretty?: boolean | string;
+}
+
+export function render(vnode: VNode, context?: any, options?: Options):string;
+export default render;