Merge pull request #43 from huangminghuang/set-release-0.9

set version to 0.9

Author: huangminghuang

CMakeLists.txt

@@ -1,7 +1,7 @@
 cmake_minimum_required(VERSION 3.14)
 message("CMake Version: ${CMAKE_VERSION}")
 project(hpp_proto
-  VERSION 0.1.0
+  VERSION 0.9.0
   LANGUAGES CXX)
 
 set(CMAKE_CXX_STANDARD 20) # requires for compiling is_utf