updated the instruction

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@23796 71c3de6d-444a-0410-be80-ed276b4c234a

opensuse/readme.html

@@ -3,9 +3,8 @@
 To use this repository, run the following command:
 
 <pre style="padding:0.5em; margin:1em; background:black; color:white">
-sudo wget -O /etc/yum.repos.d/hudson.repo http://hudson-ci.org/opensuse/hudson.repo
-sudo rpm --import http://hudson-ci.org/opensuse/hudson-ci.org.key
+sudo zypper addrepo http://hudson-ci.org/opensuse/ hudson
 </pre>
 
 <p>
-With that set up, the Hudson package can be installed with <tt>yum install hudson</tt>
+With that set up, the Hudson package can be installed with <tt>zypper install hudson</tt>