Fix example

Author: teunbrand

R/theme-elements.R

@@ -55,7 +55,7 @@
 #'   geom_smooth(formula = y ~ x, method = "lm") +
 #'   theme(geom = element_geom(
 #'     ink = "red", accent = "black",
-#'     pointsize = 1, thick = 2
+#'     pointsize = 1, linewidth = 2
 #'   ))
 #' @name element
 #' @aliases NULL