make youtube tutorial #1: basic introduction to Repocad

[oleegholm]

record a 3 minute tutorial authored like this:

0-0:30: the website, the editor, the canvas,
0:30 - 0:55 calling functions example: line(0 0 200 0) and text(0 0 8 "hello world")
0:55 - 1:10 paper scale and printing

1:10 - 1:20 types and values
1:20 - 1:45 writing functions: names and input parameters
1:45 - 2:05 saving a script, viewing the library

2:05 - 2:20 importing a script
2:20 - 2:40 making a loop

2:40 - 3:00 two examples: storage boxes and ruler