Merge pull request #108 from sibusiso16/patch-1

Update relational-data.Rmd

relational-data.Rmd

@@ -154,7 +154,7 @@ Like `mutate()`, the join functions add variables to the right, so if you have a
 
 (When you're in RStudio, you can use `View()` to avoid this problem).
 
-For example, imagine you want to add the full airline name to the `flights` data. You can combine the `airlines` and `carrier` data frames with `left_join()`:
+For example, imagine you want to add the full airline name to the `flights2` data. You can combine the `airlines` and `flights2` data frames with `left_join()`:
 
 ```{r}
 flights2 %>%