Use code4lib-specific feed

Author: wdenton

config.ini

@@ -152,7 +152,7 @@ name = Ian Davis
 # [http://textsfornothing.com/blog/?cat=2&feed=atom]
 # name = Jeff Davis
 
-[https://www.miskatonic.org/feed/all.xml]
+[https://www.miskatonic.org/feed/code4lib.xml]
 name = William Denton
 
 # 20140718: Nothing since 2011 (wtd)