Docu update.

doc/tex/contributors.tex

@@ -20,7 +20,7 @@ The GRIB-Modules was developed by Heiko Borgert and Wolfgang Welke in 1991 at th
 \begin{description}
 \item[afterburner] is a postprocessing program for ECHAM data and ECMWF analysis data,
 originally developed by Edilbert Kirk, Michael Ponater and Arno Hellbach.
-The afterburner code was modified for the {\CDO} opertors after, sp2gp, gp2sp.
+The afterburner code was modified for the {\CDO} opertors  {\htmlref{after}{after}},  {\htmlref{sp2gp}{sp2gp}},  {\htmlref{gp2sp}{gp2sp}}.
 
 \item[SCRIP] is a software package used to generate interpolation weights for remapping
 fields from one grid to another in spherical geometry \cite{SCRIP}.
@@ -66,7 +66,7 @@ all percentile operators, module {\htmlref{YDRUNSTAT}{YDRUNSTAT}} and {\htmlref{
 \item[Kameswarrao Modali]: Implemented operators: contour, shaded, grfill, vector, graph.
 
 \item[Michal Koutek]: Implemented operators: {\htmlref{selmulti}{selmulti}}
-{\htmlref{delmulti}{delmulti}}, {\htmlref{changemulti}{changemulti}}, {\htmlref{samplegrid}{samplegrid}}
+{\htmlref{delmulti}{delmulti}}, {\htmlref{changemulti}{changemulti}}, {\htmlref{samplegrid}{samplegrid}},
 {\htmlref{uvDestag}{uvDestag}}, {\htmlref{rotuvNorth}{rotuvNorth}}, {\htmlref{projuvLatLon}{projuvLatLon}}.
 
 \item[Etienne Tourigny]: Implemented operators:  {\htmlref{setclonlatbox}{setclonlatbox}}, {\htmlref{setcindexbox}{setcindexbox}},
@@ -146,6 +146,7 @@ Martin Schultz,
 Dennis Shea,
 Kevin Sieck,
 Martin Stendel,
+Bjorn Stevens,
 Martina Stockhaus,
 Claas Teichmann,
 J\"org Trentmann,