message: Specify required version of geo
diff: @@ -341,17 +341,17 @@ and `FromSql` implementations for `eui48`'s `MacAddress` type.
  ### POINT type
  [POINT](https://www.postgresql.org/docs/9.4/static/datatype-geometric.html#AEN6799)
  -support is provided optionally by the `with-geo` feature, which adds `ToSql` and `FromSql` implementations for `geo`'s `Point` type.
  +support is provided optionally by the `with-geo` feature, which adds `ToSql` and `FromSql` implementations for `geo`'s `Point` type. Requires `geo` version 0.4.
  ### BOX type
  [BOX](https://www.postgresql.org/docs/9.4/static/datatype-geometric.html#AEN6883)
  -support is provided optionally by the `with-geo` feature, which adds `ToSql` and `FromSql` implementations for `geo`'s `Bbox` type.
  +support is provided optionally by the `with-geo` feature, which adds `ToSql` and `FromSql` implementations for `geo`'s `Bbox` type. Requires `geo` version 0.4.
  ### PATH type
  [PATH](https://www.postgresql.org/docs/9.4/static/datatype-geometric.html#AEN6912)
  support is provided optionally by the `with-geo` feature, which adds `ToSql` and `FromSql` implementations for `geo`'s `LineString` type.
  -Paths converted from LineString are always treated as "open" paths. Use the
  +Paths converted from LineString are always treated as "open" paths. Requires `geo` version 0.4. Use the
  [pclose](https://www.postgresql.org/docs/8.2/static/functions-geometry.html#FUNCTIONS-GEOMETRY-FUNC-TABLE)
  geometric function to insert a closed path.
  