Increase library version

- increase version in CMakeLists.txt file
- update README.md file by adding new headline and
changelog

CMakeLists.txt

@@ -4,8 +4,8 @@
 
 cmake_minimum_required(VERSION 3.17)
 set(PROJECT_NAME ls_std)
-set(RELEASE_VERSION 2020.3.0)
-set(BUILD_WITH_TESTS TRUE)
+set(RELEASE_VERSION 2020.3.1)
+set(BUILD_WITH_TESTS FALSE)
 project(${PROJECT_NAME})
 
 ##########################################################

README.md

@@ -1,4 +1,4 @@
-# Lynar Studios - Standard Library 2020.3.0 #
+# Lynar Studios - Standard Library 2020.3.1 #
 
 This is a cross-platform standard library written in C++ which provides basic functionality and implementation, like:
  
@@ -17,12 +17,7 @@ It has been tested on __Windows__, __Linux__ and __MacOS__ systems.
 
 ### Changelog ###
 
-- added event handling functionality
-- added observer pattern classes
-- added xml parser class by reducing complexity of xml reader class
-- ls_std::Class is now polymorphic
-- fixed some include directives 
-- made existing serialization classes flyweight classes
+- improved CMakeLists.txt file by adding functionality to build project with or without tests
 
 ### Documentation ###