use markdown in readme

README.md

@@ -8,18 +8,18 @@ using SSH public keys.
 Configuration
 =============
 
-1. Create a user <pre>vmadmin</pre>.
+1. Create a user <code>vmadmin</code>.
 
 2. Give that user sudo permissions for calling virsh, so she may control (all)
    VMs:
 
-    Defaults:vmadmin !requiretty
-    vmadmin ALL = (root) NOPASSWD: /usr/bin/virsh
+      Defaults:vmadmin !requiretty
+      vmadmin ALL = (root) NOPASSWD: /usr/bin/virsh
 
 3. For every one of your users, create a line in vmadmin's .ssh/authorized_keys
    using their SSH public keys:
 
-    command="/usr/local/bin/virssh myfancyvm",permitopen="localhost:5915",no-X11-forwarding,no-agent-forwarding ssh-rsa AAAAB...== myfancyuser@hjome
+       command="/usr/local/bin/virssh myfancyvm",permitopen="localhost:5915",no-X11-forwarding,no-agent-forwarding ssh-rsa AAAAB...== myfancyuser@hjome
 
    Instead of specifying only one VM "myfancyvm", you may also specify multiple
    VMs by regex, for example "(myfancyvm|myothervm)".