Fix incorrect docstring on NamedSectionGenerator (#1228)

abstract class Section(val name: String)

/**

 * A named section generator allows customization via a predefined set of named sections. Implementors may either:

 * 1. Override section and use a `when` clause to handle each section individually

 * 2. Call `registerSection { ... }` to register individual sections on demand.

 * A named section generator allows customization via a predefined set of named sections.

 *

 * ```rust

 * struct Config {

 *    /* section:ConfigStruct */

 *    make_token: TokenProvider

 *    /* endsection:ConfigStruct */

 * }

 * ```

 *

 * In cases where the generated code is static, this will improve readability.

 * Implementors MUST override section and use a `when` clause to handle each section individually

 */

abstract class NamedSectionGenerator<T : Section> {

    abstract fun section(section: T): Writable