minor docs updates

doc/source/tutorial-lib-layout.rst

@@ -113,6 +113,9 @@ The MRPT CMake scripts automatically recognize those files under the src
 directory with the pattern ``*_unittest.cpp`` as files for unit testing.
 MRPT uses the Google’s gtest library to perform these tests.
 
+To see how to invoke the regular unit tests, or how to run them automatically
+under ``gdb`` or ``valgrind``, see: :ref:`unit_testing`.
+
 Note that the ``*_unittest.cpp`` files are not included in the "mrpt-<name>”
 library, but a new target ``test-<name>`` is automatically created which is
 invoked when doing ``make test`` or ``make test_legacy``.

libs/gui/include/mrpt/gui/CDisplayWindow.h

@@ -50,7 +50,8 @@ class CDisplayWindow : public mrpt::gui::CBaseGUIWindow
 		const std::string& windowCaption = std::string(),
 		unsigned int initWidth = 400, unsigned int initHeight = 400);
 
-	/** Class factory returning a smart pointer */
+	/** Class factory returning a smart pointer, equivalent to
+	 * `std::make_shared<>(...)` */
 	static CDisplayWindow::Ptr Create(
 		const std::string& windowCaption, unsigned int initWidth = 400,
 		unsigned int initHeight = 400);

libs/gui/include/mrpt/gui/CDisplayWindow3D.h

@@ -153,7 +153,8 @@ class CDisplayWindow3D : public mrpt::gui::CBaseGUIWindow
 		unsigned int initialWindowWidth = 400,
 		unsigned int initialWindowHeight = 300);
 
-	/** Class factory returning a smart pointer */
+	/** Class factory returning a smart pointer, equivalent to
+	 * `std::make_shared<>(...)` */
 	static CDisplayWindow3D::Ptr Create(
 		const std::string& windowCaption, unsigned int initialWindowWidth = 400,
 		unsigned int initialWindowHeight = 300);

libs/gui/include/mrpt/gui/CDisplayWindowGUI.h

@@ -101,7 +101,8 @@ class CDisplayWindowGUI : public nanogui::Screen
 
 	virtual ~CDisplayWindowGUI() override;
 
-	/** Class factory returning a smart pointer */
+	/** Class factory returning a smart pointer, equivalent to
+	 * `std::make_shared<>(...)` */
 	template <typename... Args>
 	static Ptr Create(Args&&... args)
 	{

libs/gui/include/mrpt/gui/CDisplayWindowPlots.h

@@ -89,7 +89,8 @@ class CDisplayWindowPlots : public mrpt::gui::CBaseGUIWindow
 		const std::string& windowCaption = std::string(),
 		unsigned int initialWidth = 350, unsigned int initialHeight = 300);
 
-	/** Class factory returning a smart pointer */
+	/** Class factory returning a smart pointer, equivalent to
+	 * `std::make_shared<>(...)` */
 	static CDisplayWindowPlots::Ptr Create(
 		const std::string& windowCaption, unsigned int initialWindowWidth = 400,
 		unsigned int initialWindowHeight = 300);