<detail> in docs hides too much valuable information

[steve-downey]

I found

execution/docs/overview.md

Lines 190 to 222 in 9cd2e66

	<details>
	<summary>Example</summary>
	The example shows a sender implementing an operation similar to <code><a href=‘#just’>just</a>(_value)</code>.
	```c++
	struct example_sender
	{
	template <std::execution::receiver Receiver>
	struct state
	{
	using operation_state_concept = std::execution::operation_state_t;
	std::remove_cvref_t<Receiver> receiver;
	int value;
	auto start() & noexcept {
	std::execution::set_value(
	std::move(this->receiver),
	this->value
	);
	}
	};
	using sender_concept = std::execution::sender_t;
	using completion_signatures = std::execution::completion_signatures<
	std::execution::set_value_t(int)
	>;
	int value{};
	template <std::execution::receiver Receiver>
	auto connect(Receiver&& receiver) const -> state<Receiver> {
	return { std::forward<Receiver>(receiver), this->value };
	}
	};
	static_assert(std::execution::sender<example_sender>);

completely by accident. This is an important example buried under several levels of ▶

Documentation being too verbose isn't a problem that needs a solution, in my opinion. Navigation is a separate problem from presentation.