[update] documentation

doc/tutorial/tutorial.tex

@@ -116,7 +116,7 @@ $> target extended localhost:4242
 To load the program, use:\\
 \begin{small}
 \begin{lstlisting}[frame=tb]
-$> load program.elf
+$> load blinky.elf
 \end{lstlisting}
 \end{small}