chore: update tour statement about variables

sarahhaggarty · sarahhaggarty · commit 32fcd6200b26 · 2025-07-14T13:34:03.000+02:00
diff --git a/docs/topics/tour/kotlin-tour-hello-world.md b/docs/topics/tour/kotlin-tour-hello-world.md
@@ -71,8 +71,8 @@ fun main() {
 
 As `customers` is a mutable variable, its value can be reassigned after declaration.
 
-> We recommend that you declare all variables as read-only (`val`) by default. Declare mutable variables (`var`) only if 
-> necessary.
+> We recommend declaring all variables as read-only (`val`) by default. Only use mutable variables (`var`) if you really
+> need to. That way, you're less likely to accidentally change something that wasn't meant to change.
 > 
 {style="note"}
 

Original file line number	Diff line number	Diff line change
`@@ -71,8 +71,8 @@ fun main() {`
`71`	`71`
`72`	`72`	As `customers` is a mutable variable, its value can be reassigned after declaration.
`73`	`73`
`74`		-> We recommend that you declare all variables as read-only (`val`) by default. Declare mutable variables (`var`) only if
`75`		`-> necessary.`
	`74`	+> We recommend declaring all variables as read-only (`val`) by default. Only use mutable variables (`var`) if you really
	`75`	`+> need to. That way, you're less likely to accidentally change something that wasn't meant to change.`
`76`	`76`	`>`
`77`	`77`	`{style="note"}`
`78`	`78`