doc: add webpage in changelog

Author: VitoVan

docs/changelog.org

@@ -4,6 +4,8 @@
   use Semantic Versioning from now on
 - fix Windows publishing problem on 0.1.4
 - fix audio problem on CI (just don't open it)
+- create webpage
+  https://vitovan.com/calm/
 ** 0.1.4
 - downgrade glibc version 2.33+ -> 2.31(for Linux)
   now CALM applications could run on the old Ubuntu 20.04 LTS