Also remove lone n from DETn.ID header

Author: hugobuddel

App02_FITS_keywords.tex

@@ -144,7 +144,7 @@ \subsubsection{DRS.PUPIL}\label{fits:drs.pupil}
 
 \subsection{Specification of FITS header keywords used in imaging and spectroscopy recipes}{}\label{sec:allheaderkeywords}
 
-\subsubsection{DET\textit{n}.ID}\label{fits:det.id}
+\subsubsection{DET.ID}\label{fits:det.id}
 \begin{recipedef}
 Name & DET.ID \tabularnewline
 Class & header \tabularnewline