diff --git a/README.md b/README.md
index dd8d757..db22656 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,11 @@
 # gitea_pages
 
 _Containerized web application for managing public pages of Git repositories within a single Gitea instance._
+
+```plantuml
+Alice -> Bob: Authentication Request
+Bob --> Alice: Authentication Response
+
+Alice -> Bob: Another authentication Request
+Alice <-- Bob: Another authentication Response
+```