Make clear that hg pull -r REV pulls "up to" a revision. The existing message was a bit confusing, making the reader believe that only the specific revision is pulled.

#!/bin/sh

hg init
echo This is file a1 > a
hg add a
hg commit -m "commit #0" -d "1000000 0"
touch b
hg add b
rm b
hg commit -A -m"comment #1" -d "1000000 0"