refs #25784 [fid_bbi] config changes for blog

fid_bbi/config/vufind/config.ini

@@ -96,8 +96,8 @@ host            = https://fid-bbi.idm.oclc.org
 ;disable_ticket_auth_logging = true
 
 [RssConsumer]
-base_url = "https://www.fid-bbi.de/blog/"
-xml_doc = "?feed=rss2"
+base_url = "https://www.fid-bbi.de/blog/index.php"
+xml_doc = "feed"
 input_date_format = "D, j M Y G:i:s O"
 excerpt_length = 150
 ; excerpt_suffix is the string added to excerpts to denote they were shortened