Added troubleshooting steps

Author: jhuckaby

README.md

@@ -5,3 +5,14 @@ Hey everyone!  WebcamJS v1.x is going into maintenance mode as of Feb 11, 2017.
 See [DOCS.md](https://github.com/jhuckaby/webcamjs/blob/master/DOCS.md) for the v1.x documentation.
 
 Looking for a good alternative to WebcamJS?  Please check out [JpegCamera](https://github.com/amw/jpeg_camera) by [Adam Wróbel](https://github.com/amw).  It has many advanced features that WebcamJS is lacking (for example, upload multiple photos at once, retry failed uploads, CSRF tokens, make sure camera is ready), and has a very clean and object-oriented design.
+
+## Troubleshooting
+
+Having trouble?  See if your webcam is actually working in your browser:
+
+- Try the basic demo: https://pixlcore.com/demos/webcamjs/demos/basic.html
+- Try this HTML5 Webcam test page: https://simpl.info/getusermedia/
+- And this one: https://davidwalsh.name/demo/camera.php
+- Try this Flash Webcam test page: https://www.onlinemictest.com/webcam-test-in-adobe-flash
+- Try jQuery Webcam: http://www.xarg.org/project/jquery-webcam-plugin/
+- Try JpegCamera: https://github.com/amw/jpeg_camera