Small fix

Author: cmcgee1024

README.md

@@ -51,7 +51,7 @@ swiftly is supported on Linux and macOS. For more detailed information about swi
 
 ## Updating swiftly
 
-This command checks to see if there are new versions of `swiftly` itself and upgrades to them if possible.
+This command checks to see if there are new versions of swiftly itself and upgrades to them if possible.
 
 `swiftly self-update`