clarify `/cmd` advice

README.md

@@ -14,7 +14,7 @@ Main applications for this project.
 
 The directory name for each application should match the name of the executable you want to have (e.g., `/cmd/myapp`).
 
-Don't put a lot of code in the application directory unless you think that code can be imported and used in other projects. If this is the case then the code should live in the `/pkg` directory.
+Don't put a lot of code in the application directory.  If you think the code can be imported and used in other projects, then it should live in the `/pkg` directory.
 
 It's common to have a small main function that imports and invokes the code from the `/internal` and `/pkg` directories.