document hostname

README.md

@@ -0,0 +1,16 @@
+hostname
+========
+
+
+hostname provides commands which can be used to display the system's
+DNS name, and to display or set its hostname or NIS domain name.
+ 
+Reimplement this command in Rust:
+* /bin/hostname
+* /bin/dnsdomainname
+* /bin/domainname
+* /bin/nisdomainname
+* /bin/ypdomainname
+
+Upstream:
+TODO