Requested documentation update [contribution]

[Ian Lance Taylor]

"James Southard_Jr" <omiksemaj@hotmail.com> writes:

> I eventually tried using an absolute path when specifying the
> configure script location instead of a relative path - once I did
> that, I was able to run configure.

I always use a relative path when running configure.

The fix is not to change the documentation.  We should instead figure
out why it didn't work for you.

Ian