Update scaling-functions.Rmd (#538)

removed what appears to be a sentence fragment that has been superceded by the following sentence.

Author: d-morrison

scaling-functions.Rmd

@@ -177,7 +177,7 @@ sliders <- pmap(vars, mySliderInput)
 
 Don't worry if this code looks like gibberish to you: you can continue to use copy and paste.
 But in the long-run, I'd recommend learning more about functional programming, because it gives you such a wonderful ability to concisely express otherwise long-winded concepts.
-You can see other examples See Section \@ref(programming-ui) for more examples of using these techniques to generate dynamic UI in response to user actions.
+See Section \@ref(programming-ui) for more examples of using these techniques to generate dynamic UI in response to user actions.
 
 ## Server functions