Update README.md

README.md

@@ -84,4 +84,4 @@ type CallbackFunc func(ctx context.Context, shutdown context.CancelFunc) *[]Ifac
 func App(t time.Duration, f CallbackFunc)
 ```
 
-**t** in `App` function is a timeout for `Shutdown` function, if Shutdown function will be not closed, context will be canceled afetr this value and will print error to console.
+**t** in `App` function is a timeout for `Shutdown` function, if Shutdown function will be not closed, context will be canceled afetr this value and will print error to console. **f** - is function for main application code with cancel context inside, `ctx` will be triggered when application got one of close/terminate signals and we can terminate application by calling `shutdown` function.