docs: SC/21---Use $STARLINK_DIR rather than /stardev to access standa…

…rd configuration files.

/star would be better than /stardev.
(cherry picked from commit f422b82)

docs/sc/021/sc21.tex

@@ -2026,7 +2026,7 @@ \subsection{\xlabel{running_dimm}Running the map-maker}
 \begin{myquote}
 \begin{verbatim}
 % makemap in='/jcmtdata/raw/scuba2/s8*/20120720/00030/*.sdf' method=iter \
-  config=^/stardev/share/smurf/dimmconfig.lis out=850_crl2688
+  config=^$STARLINK_DIR/share/smurf/dimmconfig.lis out=850_crl2688
 
 
 Out of 32 input files, 4 were darks, 8 were fast flats and 20 were science
@@ -3030,7 +3030,7 @@ \subsection{\xlabel{Galactic}Extended galactic sources}
 of iterations to compensate as 40 is unlikely to be sufficient.
 \begin{myquote}
 \begin{verbatim}
-^/stardev/share/smurf/dimmconfig_bright_extended.lis
+^$STARLINK_DIR/share/smurf/dimmconfig_bright_extended.lis
 numiter = -100
 noisecliphigh = 10.0
 maptol = 0.03