Fix typo

Author: simonsan

README.md

@@ -87,4 +87,4 @@ Install `mdbook` with the following command
 
 and run `mdbook build` in the root directory of the repository. The standard
 output folder is `/book`. If you want to take a look in the browser you can 
-use `mdbook serve` and open the corresponding adress (take a look at the terminal output).
+use `mdbook serve` and open the corresponding address (take a look at the terminal output).