Merge pull request #52 from habbes/dev

Add link to OpenCV tutorial in initial code

src/samples/empty.ts

@@ -1,4 +1,5 @@
 export default
 `// write your code here
 // check out the code samples if you need help getting started
+// To learn more about OpenCV.js, check out the tutorials at: https://docs.opencv.org/3.4.1/d5/d10/tutorial_js_root.html
 `;