Document GLFW_FLOATING not supported on Wayland
diff --git a/include/GLFW/glfw3.h b/include/GLFW/glfw3.h
index 6f8c9b4..f86b176 100644
--- a/include/GLFW/glfw3.h
+++ b/include/GLFW/glfw3.h
@@ -4041,11 +4041,14 @@
*
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
* GLFW_INVALID_ENUM, @ref GLFW_INVALID_VALUE, @ref GLFW_PLATFORM_ERROR and @ref
- * GLFW_FEATURE_UNAVAILABLE.
+ * GLFW_FEATURE_UNAVAILABLE (see remarks).
*
* @remark Calling @ref glfwGetWindowAttrib will always return the latest
* value, even if that value is ignored by the current mode of the window.
*
+ * @remark @wayland The [GLFW_FLOATING](@ref GLFW_FLOATING_attrib) window attribute is
+ * not supported. Setting this will emit @ref GLFW_FEATURE_UNAVAILABLE.
+ *
* @thread_safety This function must only be called from the main thread.
*
* @sa @ref window_attribs