second correction to translation

[zhangweiwu at realss.com]

zhangweiwu at realss.com wrote:
> Reason for this change: it is a very common mistake to use the ideograph
> 帐 in place of another ideograph 账. The first one means "curtain". The
> second one means "account". 
Hi. Thanks for someone point out to me in private email. here is the
update: the ideograph 帐 has two meanings, "curtain" and "account",
while 账 only means "account". The accountant's text books use the
latter one not because the first one being incorrect, but because using
the second ideograph gives reader no chance of misunderstanding it as
"curtain".

So: current translation is not incorrect, but a replacement is still
better for being more precious.