update README

update CPM.cmake to version 0.30.0

.github/workflows/documentation.yaml

@@ -22,7 +22,7 @@ jobs:
 
       - name: Install dependencies
         run: |
-          brew install doxygen
+          brew install doxygen graphviz
           pip3 install jinja2 Pygments
 
       - name: Build

README.md

@@ -17,6 +17,8 @@ This template is the result of learnings from many previous projects and should
 ## Features
 
 - [Modern CMake practices](https://pabloariasal.github.io/2018/02/19/its-time-to-do-cmake-right/)
+- [CMake for library authors: Best practice](https://crascit.com/2019/10/16/cppcon-2019-deep-cmake-for-library-authors/)
+- [Modernize C++ using clang-tidy](https://www.kdab.com/clang-tidy-part-1-modernize-source-code-using-c11c14/)
 - Suited for single header libraries and projects of any scale
 - Clean separation of library and executable code
 - Integrated test suite

cmake/CPM.cmake

@@ -1,4 +1,4 @@
-set(CPM_DOWNLOAD_VERSION 0.28.4)
+set(CPM_DOWNLOAD_VERSION 0.30.0)
 
 if(CPM_SOURCE_CACHE)
   # Expand relative path. This is important if the provided path contains a tilde (~)

documentation/CMakeLists.txt

@@ -7,6 +7,8 @@ project(GreeterDocs)
 include(../cmake/CPM.cmake)
 CPMUsePackageLock(package-lock.cmake)
 
+include(../cmake/options.cmake)
+
 CPMAddPackage(NAME Greeter SOURCE_DIR ${CMAKE_CURRENT_LIST_DIR}/..)
 
 CPMAddPackage(