ma: small bibliography formatting fixes

ma/safety_reset.tex

@@ -6,7 +6,7 @@
     backend=biber,
     style=numeric,
     natbib=true,
-    url=true, 
+%    url=true, 
     doi=true,
     eprint=false
     ]{biblatex}
@@ -2534,7 +2534,7 @@ correctly configure than it is to simply use separate hardware and secure the in
 \newpage
 
 \nocite{*} % FIXME
-\printbibliography
+\printbibliography[heading=bibintoc]
 \newpage
 
 \appendix