Small improvements to widgets vignette

Author: alandipert

vignettes/intro_htmlwidgets.Rmd

@@ -49,7 +49,7 @@ usethis::create_package("~/sparklines")
 # Inject the widget templating
 withr::with_dir(
   "~/sparklines", 
-  reactR::scaffoldReactWidget("sparklines", list("react-sparklines" = "^1.7.0"))
+  reactR::scaffoldReactWidget("sparklines", list("react-sparklines" = "^1.7.0"), edit = FALSE)
 )
 ```
 
@@ -101,6 +101,8 @@ At this point, we've built some scaffolding for an htmlwidget powered by React.
 
 ### First, outline an interface
 
+> Note that the examples in this section are just to demonstrate API possibilities and need not be pasted into any file.
+
 Consider the following example taken from the [react-sparklines documentation](http://borisyankov.github.io/react-sparklines/).
 
 ```js
@@ -182,7 +184,7 @@ sparklines <- function(data, ..., width = NULL, height = NULL) {
 }
 ```
 
-At this point, we define functions that make it easy for the user to create the other components by adding these to  `R/reactSparklines.R`
+At this point, we define functions that make it easy for the user to create the other components by adding these to  `R/sparklines.R`
 
 ```{r}
 #' @export