If you take my advice and add the provision allowing the secretary to make nonsubstantive changes, be sure to spell "grammar" correctly and not the way I too-fast-typed it in my first reply!
If PartTimeParli replies differently, trust that response instead of mine, but here's mine:
Unless your bylaws specifically allow correction of spelling and grammar errors without amendment, I think you have to amend the bylaws to correct them. You might consider adding a provision allowing the secretary to correct nonsubstantive errors in spelling, grammer or numbering without amendment, subject to approval of the board of directors.
Our group's bylaws are full of grammar errors. According to the bylaws, I need to have approval from the group to change or amend the bylaws. Is correcting grammar and spelling considered amending? I would not be changing what is actually said in the bylaws, only correcting the spelling and grammar. I was hoping to do this before the new school year. Any ideas and thoughts on this would be gratefully appreciated!