[klibc] git information in the README

[Geert Stappers]

Hello,

In the latest Debian source of klibc, 1.4.11, contains README this
 
| There is also a cvsweb repository at:
| 
|         http://www.zytor.com/cvsweb.cgi/klibc/
| 
| There is no direct public CVS access yet, however, the CVS repository
| is available for rsync from:
| 
|         rsync://rsync.kernel.org/pub/linux/libs/klibc/cvsroot/



Could the README be updated with "git instructions" ?

Please include beside the `git checkout URL` also how to `git update`


Cheers
Geert Stappers