Do not hyperlink some exampe url's.

The example url's should not be hyperlinked. They show up as dead links
in ahrefs etc. Make linkcheck report them if they show up again.

Author: rouilj

doc/upgrading.txt

@@ -1868,11 +1868,11 @@ If you are using the xml-rpc interface, there is a change
   roundup url and get a response, you must use the /xmlrpc
   url. For example, if you used to send your xmlrpc request to:
 
-   http://myroundup.com/roundup
+   \http://myroundup.com/roundup
 
   you need to change the url to read:
 
-   http://myroundup.com/roundup/xmlrpc
+   \http://myroundup.com/roundup/xmlrpc
 
   to invoke the xmlrpc handler. This allows us to send xml
   data to roundup for other handlers (e.g. REST, SOAP ...)

website/www/conf.py

@@ -220,6 +220,5 @@
     r'http://www.bizarsoftware.com.au/', # reference in license,
     r'http://11.11.11.101',              # dummy example url
     r'https://.../rest/.*',              # dummy example url
-    r'http://myroundup.com/roundup.*',   # dummy example url
     r'http://dev.zope.org/Wikis/DevSite/Projects/ComponentArchitecture/ZPTInternationalizationSupport',                 # dead link, there for historic
 ]