Correct README syntax for bool flag
The proper syntax for the attribute is "parse" not "parser".
@@ -195,7 +195,7 @@ In addition to the raw attributes, the following magic attributes are supported:
| Type | Effect | Implies |
|---------------------|--------------------------------------|------------------------------------------------------------------|
-| `bool` | flag | `#[clap(parser(from_flag))]` |
+| `bool` | flag | `#[clap(parse(from_flag))]` |
| `Option<T>` | optional argument | `.takes_value(true).required(false)` |
| `Option<Option<T>>` | optional value for optional argument | `.takes_value(true).required(false).min_values(0).max_values(1)` |
| `T` | required argument | `.takes_value(true).required(!has_default)` |
