suggestion for re-wording Disk usage node in doc/coreutils.texi

[vy]

Hello,

Would the following re-wording be in some small way an improvement to what
is there at the Disk usage node?

9001,9005c9001,9007
< No disk can hold an infinite amount of data.  These commands report on
< how much disk storage is in use or available.  (This has nothing much to
< do with how much @emph{main memory}, i.e., RAM, a program is using when
< it runs; for that, you want @command{ps} or @command{pstat} or
@command{swap}
< or some such command.)
---
> Files and directories in file-systems are stored in disk devices of
> limited size. The commands here describe their space usage and status,
> and instruct the host to synchronise the state of storage between
> memory and disk. To know more about memory, for example random access
> memory or @acronym{RAM}, other commands may be better suited, for example
> @command{ps} or @command{pstat} or @command{swap} or some other
> command.

-- Van Ly <address@hidden>