diff --git a/README.md b/README.md
index aa525dd..640831e 100644
--- a/README.md
+++ b/README.md
@@ -123,6 +123,12 @@ installHijri(moment);
 const hijri: HijriDate | null = moment().toHijri();
 ```
 
+## Architecture
+
+A thin plugin wrapper over [hijri-core](https://github.com/acamarata/hijri-core). The plugin augments the Moment.js prototype with Hijri methods, each delegating to the registered calendar engine. Zero global state.
+
+For more detail see the [Architecture wiki page](https://github.com/acamarata/moment-hijri-plus/wiki/Architecture).
+
 ## Documentation
 
 Full API reference, architecture notes, and calendar algorithm details are in the [project wiki](https://github.com/acamarata/moment-hijri-plus/wiki).