Add ReleaseMixin to architecture

doc/architecture/BuildAndMixins.md

@@ -1,4 +1,7 @@
-# Build Frontend
+# Overview of Build and Mixins
+
+* Build can be used standalone
+* Mixin can be added to Build
 
 ```mermaid
 classDiagram
@@ -8,6 +11,7 @@ classDiagram
         initialize_build_dir()
     }
 
+
     class DevopsTerraformBuild {
         terraform_build_commons_path()
         project_vars()
@@ -63,6 +67,11 @@ classDiagram
         test()
     }
 
+    class ReleaseMixin {
+        prepare_release()
+        tag_and_push_release()
+    }
+    
     class ProvsK3sMixin {
         // ProvsK3sMixin -> ProvsK3sBuild
         def update_runtime_config(fqdn, ipv4, ipv6=None)
@@ -80,6 +89,7 @@ classDiagram
     DevopsBuild <|-- DevopsImageBuild
     DevopsBuild <|-- DevopsTerraformBuild
     DevopsBuild <|-- AwsRdsPgMixin
+    DevopsBuild <|-- ReleaseMixin
 
     DevopsTerraformBuild <|-- AwsBackendPropertiesMixin
     DevopsTerraformBuild <|-- DigitaloceanTerraformBuild