Be explicit that nothing is printed.

amartini51 · amartini51 · commit 256dc463a0bc · 2022-12-14T16:33:29.000-08:00
Calling it out prevents a reader from wondering whether the "prints"
comment is missing.
diff --git a/Sources/TSPL/TSPL.docc/GuidedTour/GuidedTour.md b/Sources/TSPL/TSPL.docc/GuidedTour/GuidedTour.md
@@ -470,6 +470,7 @@ using the same name for that unwrapped value.
 if let nickname {
     print("Hey, \(nickname)")
 }
+// Doesn't print anything, because nickname is nil.
 ```
 
 <!--

Original file line number	Diff line number	Diff line change
`@@ -470,6 +470,7 @@ using the same name for that unwrapped value.`
`470`	`470`	`if let nickname {`
`471`	`471`	`print("Hey, \(nickname)")`
`472`	`472`	`}`
	`473`	`+// Doesn't print anything, because nickname is nil.`
`473`	`474`	```
`474`	`475`
`475`	`476`	`<!--`