do not repeat degrees clockwise (#1387)

* do not repeat degrees clockwise

* edits

---------

Co-authored-by: Mike Bostock <[email protected]>

Author: Fil

src/marks/vector.d.ts

@@ -47,8 +47,7 @@ export interface VectorOptions extends MarkOptions {
   /**
    * The vector’s orientation (rotation angle); either a constant number in
    * degrees clockwise, or an optional channel (with no associated scale).
-   * Defaults to 0 degrees with the vector pointing up; positive angles proceed
-   * clockwise.
+   * Defaults to 0 degrees with the vector pointing up.
    */
   rotate?: ChannelValue;