Fix typo

wiki/src/doc/advanced_topics/boot_options.mdwn

@@ -4,7 +4,7 @@ The Boot Loader is the first screen that appears
 when starting Tails.
 
 You can use the Boot Loader to add *boot options*. Boot options are
-special parameters that can be useful to troubleshoot or workaround
+special parameters that can be useful to troubleshoot or work around
 hardware support problems. For example, our [[list of known issues with
 graphics cards|support/known_issues/graphics]] document boot options for
 different graphics cards.