Update 11-algorithms.Rmd

Close #1167

Author: Robinlovelace

11-algorithms.Rmd

@@ -83,7 +83,7 @@ Prior steps can be referred to with a comment or with an if statement such as `i
 
 Unless you organise your code into a package, it is hard to enforce reproducibility in R scripts, but there are tools that can help.
 By default, RStudio \index{RStudio} 'code checks' R scripts and underlines faulty code with a red wavy line, as shown in Figure \@ref(fig:codecheck).
-The **repex** package is another tool that can help with reproducibility.
+The **reprex** package is another tool that can help with reproducibility.
 
 ```{r codecheck, echo=FALSE, fig.cap="Code checking in RStudio. This example, from the script 11-centroid-alg.R, highlights an unclosed curly bracket on line 19.", fig.scap="Illustration of 'code checking' in RStudio."}
 knitr::include_graphics("images/codecheck.png")