Minor documentation fix
Minor documentation fix

float was written as flaot, when copying and pasting the schema from
the documentation the pig script would fail because flaot is not a
data type

ShadySQL/mortar-recsys,osaleh/ReccomenderSystem,mortardata/mortar-recsys,ShadySQL/mortar-recsys,osaleh/ReccomenderSystem,mortardata/mortar-recsys,michaelshing/mortar-recsys,michaelshing/mortar-recsys