add package microtype

supposedly (CdEDokuTeam) standard package that just improves things

tex/header/stdmath.sty

@@ -72,6 +72,7 @@
 % with \overset{\text{Definition}}&{=} instead of &\stackrel{\text{Definition}}=
 \RequirePackage{mathtools}    % for := (defined as)
 \RequirePackage{amsthm}                   % for theorems environments
+\RequirePackage{microtype}   % should improve typesetting, sometimes removing underfull hboxes
 \RequirePackage{enumerate}                  % for different kind of numbering in enumerations
 \RequirePackage[version=4]{mhchem}  % chemical formulars. Provides \ce
 \RequirePackage[per-mode=fraction,