ignoring node_modules
added examples

Signed-off-by: Sean Nicholls <seannicholls@gmail.com>
stream to file, but file is not correct?

Signed-off-by: Sean Nicholls <seannicholls@gmail.com>
added export example which streams video into ffmpeg and into a file

Signed-off-by: Sean Nicholls <seannicholls@gmail.com>