Update idioms/rustdoc-init.md

Co-authored-by: Ivan Tham <pickfire@riseup.net>

idioms/rustdoc-init.md

@@ -71,7 +71,7 @@ This is much more concise and avoids repetitive code in examples.
 ## Disadvantages
 
 As example is in a function, the code will not be tested. (Though it still will checked to make sure it compiles when running a `cargo test`)
-So this pattern is most useful when you would need to add `no_run` anyway.
+So this pattern is most useful when need `no_run`. With this, you do not need to add `no_run`.
 
 ## Discussion