Added description of bfs and dfs flags to doc of typeclasses eauto.
Added description of bfs and dfs flags to doc of typeclasses eauto.

coq/coq,coq/coq,SkySkimmer/coq,Zimmi48/coq,ejgallego/coq,SkySkimmer/coq,ejgallego/coq,SkySkimmer/coq,coq/coq,Zimmi48/coq,Zimmi48/coq,Zimmi48/coq,ejgallego/coq,ejgallego/coq,SkySkimmer/coq,coq/coq