clarify todo

employee.tex

@@ -30,7 +30,7 @@ You need to use one of the PCs in the library.
 You can enable your KITCard to unlock various doors.
 Call the key management of the facility management departement.
 They need your KITCard number.
-\todo{check!}
+\todo{not sure}
 
 \begin{center}
 \includegraphics[width=\textwidth]{img/exploits_of_a_mom.png}