Wrong path for mounting video folder

[rzdev]

Hi,

Thank you for this awesome docker image.

Just a simple correction for the readme file

Mount your Video folder to docker vod folder
docker run -it --rm --name nginx -p 1935:1935 -p 80:80 -v /local/source:/vod gdomod/nginx-vod-live-hls:latest

it should be
docker run -it --rm --name nginx -p 1935:1935 -p 80:80 -v /local/source:/videos gdomod/nginx-vod-live-hls:latest

notice the -v /local/source:/videos