fixup: fix indentation/alignment

Co-authored-by: Jan Schultke <[email protected]>

Author: dietmarkuehl

source/exec.tex

@@ -6264,9 +6264,9 @@
     void uncaught_exception();
     coroutine_handle<> unhandled_stopped();
 
-    void return_void();             // present only if is_void_v<T> is true;
+    void return_void();               // present only if \tcode{is_void_v<T>} is \tcode{true};
     template<class V>
-    void return_value(V&& value);   // present only if is_void_v<T> is false;
+      void return_value(V&& value);   // present only if \tcode{is_void_v<T>} is \tcode{false};
 
     template<class E>
     @\unspec@ yield_value(with_error<E> error);