Add TS typings

Author: jakewtaylor

package.json

@@ -3,6 +3,7 @@
   "version": "1.0.3",
   "description": "Simple React component to load Google Fonts.",
   "main": "build/index.js",
+  "typings": "src/index.d.ts",
   "repository": "https://github.com/jakewtaylor/react-google-font-loader",
   "author": "Jake Taylor",
   "license": "MIT",

src/index.d.ts

@@ -0,0 +1,14 @@
+import * as React from 'react';
+
+export interface Font {
+    font: string;
+    weights?: number[];
+}
+
+export interface GoogleFontLoaderProps {
+    fonts: Font[];
+}
+
+declare class GoogleFontLoader extends React.PureComponent<GoogleFontLoaderProps> {};
+
+export default GoogleFontLoader;