remove attach

doc/index.tex

@@ -60,7 +60,7 @@ Synrc mad has a simple interface as follows:
       params := [] | run params
          run := command [ options ]
      command := app | lib | deps | compile | bundle
-                run | stop | attach | repl
+                start | stop | repl
 \end{lstlisting}
 \vspace{1\baselineskip}