Volta examples?

[Jim Bartram]

I've been looking through the doc to try to understand repeats (voltas).
I've tried out the examples I've found and haven't found the magic key yet.
What I am looking for is something pretty simple, I think:

I have a brief piece, just eight bars of 6/8. The last measure of the eight
is Repeat 1, and the second time through the eighth bar is the 2nd (final)
ending. This should not be too complicated to create! If anyone has a
sample that does this, I'd be most grateful for the help. An extra bonus
would be an explanation of how this is supposed to work!

Thanks,

-Jim