update dependencies and add usage comments

CMakeLists.txt

@@ -1,3 +1,8 @@
+# The MiniCppStarter
+#
+# Build and run by calling: 
+# cmake -S. -Bbuild && cmake --build build && ./build/Playground
+
 cmake_minimum_required(VERSION 3.14 FATAL_ERROR)
 
 # ---- Project ----
@@ -6,28 +11,28 @@ project(Playground LANGUAGES CXX)
 
 # ---- Fetch CPM ----
 
-set(CPM_DOWNLOAD_VERSION 0.27.2) 
+set(CPM_DOWNLOAD_VERSION 0.32.0) 
 set(CPM_DOWNLOAD_LOCATION "${CMAKE_BINARY_DIR}/cmake/CPM_${CPM_DOWNLOAD_VERSION}.cmake")
 
 if(NOT (EXISTS ${CPM_DOWNLOAD_LOCATION}))
   message(STATUS "Downloading CPM.cmake v${CPM_DOWNLOAD_VERSION}")
-  file(DOWNLOAD https://github.com/TheLartians/CPM.cmake/releases/download/v${CPM_DOWNLOAD_VERSION}/CPM.cmake ${CPM_DOWNLOAD_LOCATION})
+  file(DOWNLOAD https://github.com/cpm-cmake/CPM.cmake/releases/download/v${CPM_DOWNLOAD_VERSION}/CPM.cmake ${CPM_DOWNLOAD_LOCATION})
 endif()
 
 include(${CPM_DOWNLOAD_LOCATION})
 
 # ---- Add dependencies via CPM ----
 # See https://github.com/TheLartians/CPM.cmake for details and examples
 
-CPMAddPackage(
-  NAME Greeter
-  GITHUB_REPOSITORY TheLartians/ModernCppStarter
-  VERSION 0.10
-)
+# the ModernCppStarter defines an example project called 'Greeter'
+CPMAddPackage("gh:TheLartians/[email protected]")
 
 # ---- Create executable ----
 
+# add your source files here
 add_executable(Playground main.cpp)
+
 set_target_properties(Playground PROPERTIES CXX_STANDARD 17)
 
-target_link_libraries(Playground Greeter)
+# link to your libraries' targets here
+target_link_libraries(Playground Greeter::Greeter)

main.cpp

@@ -1,5 +1,5 @@
 #include <iostream>
-#include <greeter.h>
+#include <greeter/greeter.h>
 
 int main() {
   greeter::Greeter greeter("World");