diff --git a/src/client.rs b/src/client.rs
index 4c6f2cd..1f2686b 100644
--- a/src/client.rs
+++ b/src/client.rs
@@ -1 +1,4 @@
+//! Client API to interact Server for
+//! [Gemini protocol](https://geminiprotocol.net/docs/protocol-specification.gmi)
+
 pub mod response;