Fix old website link (#296) (#297)

Signed-off-by: Tihomir Surdilovic <[email protected]>

Author: Tihomir Surdilovic

community/README.md

@@ -4,4 +4,4 @@ Here you can find information about our:
 
 - [Contributors](contributors.md): People and companies contributing to the
   Serverless workflow specification and ecosystem
-- [Presentations](https://serverlessworkflow.github.io/): Community presentations about the project (see the 'Resources' section)
+- [Presentations](https://serverlessworkflow.io/): Community presentations about the project (see the 'Resources' section)