Document Steps for Thumbnail Creation

[rnag]

Not really an issue but I want to document somewhere the steps I use to generate an (animated) thumbnail GIF for my demo video, since i think it'll be useful for another project next time.

brew install ffmpeg
ffmpeg -y -i Demo-GMU-Daily-Permit-Automation.mp4 -vf fps=10,scale=720:-1:flags=lanczos,palettegen palette.png
ffmpeg -y -i Demo-GMU-Daily-Permit-Automation.mp4 -i palette.png -filter_complex "fps=10,scale=720:-1:flags=lanczos[x];[x][1:v]paletteuse" foo.gif