Updated usage of StrExt.parse() as per a recommendation by edwardw.
@@ -3005,7 +3005,7 @@ Some examples of call expressions:
# fn add(x: i32, y: i32) -> i32 { 0 }
let x: i32 = add(1i32, 2i32);
-let pi: Option<f32> = "3.14".parse();
+let pi: Result<f32, _> = "3.14".parse();
```
### Lambda expressions
