feat: completing last slide

slides/common/software_environment.tex

@@ -441,6 +441,7 @@ \subsection{Using Conda}
 # instead of
 (/some/long/path/my_env) user@host:directory $
    \end{lstlisting}
+   if you ever need to set up your environment with a path (\altverb{-p}) instead of a name, e.\,g. on systems with a file quota.
 \end{frame}