DOC: noticed a typo

[Germain G. Ivanoff-Trinadtzaty]

I noticed a typo in the LSR doc pages ; 6.4.5 Bar lines :

 

http://lsr.dsi.unimi.it/LSR/html/doc/Documentation/user/lilypond/Bar-lines.html#Bar-lines

 

One can read in the middle of the page :

In scores with many staves, a \bar command in one staff is automatically applied to all staves. The resulting bar lines are connected between different staves of a StaffGroup, PianoStaff, or ChoirStaff.

and should read "... or GrandStaff."

 

Germain