Fixup

CMakeLists.txt

 # SPDX-FileCopyrightInfo: Copyright © DuMux-Lecture contributors, see AUTHORS.md in root folder
 # SPDX-License-Identifier: GPL-3.0-or-later
 
-#set up project
-project("dumux-lecture" C CXX)
-
-# general stuff
 cmake_minimum_required(VERSION 3.16)
 
+project("dumux-lecture" C CXX)
+
 if(NOT (dune-common_DIR
         OR dune-common_ROOT
         OR "${CMAKE_PREFIX_PATH}" MATCHES ".*dune-common.*"))