improve text

Co-authored-by: Sam Abbott <s.e.abbott12@gmail.com>

README.Rmd

@@ -104,7 +104,7 @@ reporting_delay <- estimate_delay(
 )
 ```
 
-If data was not available we could instead make an informed estimate of the likely delay. We choose a lognormal distribution with mean 2, standard deviation 1 (both with some uncertainty) and maximum 10. *This is just an example and unlikely to apply in any particular use case*.
+If data was not available we could instead make an informed estimate of the likely delay. We choose a lognormal distribution with mean 2, standard deviation 1 (both with some uncertainty) and a maximum of 10. *This is just an example and unlikely to apply in any particular use case*.
 
 ```{r}
 reporting_delay <- dist_spec(