Doc: fix the path to Show Tooltips option

Bookmarks can be saved to any available folder.

Change-Id: I037b05af76a6865f1f0637e85d6f989d694c2f18
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@digia.com>
Doc: fix punctuation

the \note command adds the colon automatically.

Change-Id: Id40e24084f22fa36fcc14354dae0eb0cbc9518ee
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@digia.com>