use a bit better language in the docs

CMakeLists.txt

@@ -6,16 +6,19 @@ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17")
 
 # append the cmake search path to include the cmake-files to help build the
 # project in lib/GraphLib/cmake_modules
-set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/lib/GraphLib/cmake_modules")
+set(CMAKE_MODULE_PATH
+  ${CMAKE_MODULE_PATH}
+  "${CMAKE_SOURCE_DIR}/lib/GraphLib/cmake_modules"
+)
 
 # these two lines sets the variables starting with MathGL and FLTK used by
 # add_executable and include_directories.
 find_package(MathGL REQUIRED)
 find_package(FLTK REQUIRED)
 
-# these two lines turn off building of tests and examples of the GraphLib library
+# these two lines turn off building of tests and examples of the GraphLib
-# building of tests and examples is rarely done while developing.
+# library building of tests and examples is rarely done while developing. See
-# see ./lib/GraphLib/CMakeLists.txt:L23 to see how these affect the library.
+# ./lib/GraphLib/CMakeLists.txt:L23 to see how these affect the library.
 set(BUILD_EXAMPLES off)
 set(ENABLE_TESTING off)
 
@@ -27,9 +30,8 @@ include_directories(
   ${FLTK_INCLUDE_DIR}
 
   # The following line might also be ${PROJECT_SOURCE_DIR}/lib/GraphLib/graphlib
-  # If your examples say #include <graphlib/gl> you keep the next value as
+  # If your examples say #include <graphlib/gl> you keep the next value as is.
-  # ${PROJECT_SOURCE_DIR}/lib/GraphLib. If it is #include <gl> you change it to
+  # If your examples is #include <gl> you change it to how its mentioned before.
-  # how its mentioned before.
   ${PROJECT_SOURCE_DIR}/lib/GraphLib
 )