add roch cave fight image

intro.tex

@@ -45,6 +45,7 @@ It begins with building a map, then describes \gls{fenestra}'s ecology, with det
 
 \paragraph{Roch Hercka} for the myriad wonderful pencil sketches (pages 
 \pageref{Roch_Hercka/dwarf_encumbrance}, 
+\pageref{Roch_Hercka/cave_fight}, 
 \pageref{Roch_Hercka/stances}, 
 \pageref{Roch_Hercka/vitals_shot}, 
 \pageref{Roch_Hercka/conjuration_right}, 

traits.tex

@@ -960,3 +960,5 @@ The \gls{gm} might assume \glspl{npc} have a number of \glspl{fatigue} equal to
 Players should be able to use this to their advantage, just as their \glspl{pc}' tired bodies work to their disadvantage.
 
 \end{multicols}
+
+\widePic{Roch_Hercka/cave_fight}