A typo in multinom_reg() documentation?

I'm wondering if stan is valid engine when using parsnip::multinom_reg() or not?
In the documentation at https://parsnip.tidymodels.org/reference/multinom_reg.html#details, it is mentioned that stan is a valid engine in the "Details" section.
When I tried to use a stan engine in multinom_reg(), I got an error message "Error: Engine 'stan' is not available. Please use one of: 'glmnet', 'spark', 'keras', 'nnet'".

library(tidymodels)
#> ── Attaching packages ────────────────────────────────────────────────────────────────────────────────────── tidymodels 0.1.1 ──
#> ✓ broom     0.7.0      ✓ recipes   0.1.13
#> ✓ dials     0.0.8      ✓ rsample   0.0.7 
#> ✓ dplyr     1.0.0      ✓ tibble    3.0.3 
#> ✓ ggplot2   3.3.2      ✓ tidyr     1.1.0 
#> ✓ infer     0.5.3      ✓ tune      0.1.1 
#> ✓ modeldata 0.0.2      ✓ workflows 0.1.2 
#> ✓ parsnip   0.1.3      ✓ yardstick 0.0.7 
#> ✓ purrr     0.3.4
#> ── Conflicts ───────────────────────────────────────────────────────────────────────────────────────── tidymodels_conflicts() ──
#> x purrr::discard() masks scales::discard()
#> x dplyr::filter()  masks stats::filter()
#> x dplyr::lag()     masks stats::lag()
#> x recipes::step()  masks stats::step()
data("iris")

clf <- multinom_reg() %>% 
  set_engine("stan")
#> Error: Engine 'stan' is not available. Please use one of: 'glmnet', 'spark', 'keras', 'nnet'

clf_fit <- clf %>% 
  fit(Species ~ ., data = iris)
#> Error in eval(lhs, parent, parent): object 'clf' not found

Created on 2020-09-18 by the reprex package (v0.3.0)

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