convert video instructions and command shorthand

Makefile

@@ -0,0 +1,3 @@
+convert-video: #id=1
+	@echo "Converting to ~/videos/dist/v${id}.en.webm"
+	@ffmpeg -i ~/videos/KYVideos_41724/KY\ ${id}\ ENG\ New\ 040424\ h264.mov -crf 10 -preset ultrafast -s 1280x720 -y ~/videos/dist/v${id}.en.webm

README.md

@@ -0,0 +1,12 @@
+## Convert videos
+
+FFMPEG is required.
+
+In order to convert videos you should run the following from the server:
+
+```
+make convert-video id=1
+```
+
+Where the video KY 1 is to be converted.
+Run the equivalent command for each video.