Correct a spelling mistake in the documatation of continuous_scale (#3643)

* correct a spelling mistake in the documatation of continuous_scale

Author: microly

R/scale-.r

@@ -49,7 +49,7 @@
 #'   range \[0, 1]. This is always [scales::rescale()], except for
 #'   diverging and n colour gradients (i.e., [scale_colour_gradient2()],
 #'   [scale_colour_gradientn()]). The `rescaler` is ignored by position
-#'   scales, which ways use [scales::rescale()].
+#'   scales, which always use [scales::rescale()].
 #' @param oob One of:
 #'   - Function that handles limits outside of the scale limits
 #'   (out of bounds).