Fix col types, remove irrelevant bit, closes #1450

spreadsheets.qmd

@@ -407,12 +407,11 @@ A good way of familiarizing yourself with the coding style used in a new package
     ```
 
     Then, read it into R, with `survey_id` as a character variable and `n_pets` as a numerical variable.
-    Hint: You will need to convert "none" to 0.
 
     ```{r}
     #| echo: false
 
-    read_excel("data/survey.xlsx", na = c("", "N/A")) |>
+    read_excel("data/survey.xlsx", na = c("", "N/A"), col_types = c("text", "text")) |>
       mutate(
         n_pets = case_when(
           n_pets == "none" ~ "0",