doc(chain): document module `rusqlite_impl`

diff --git a/crates/chain/src/rusqlite_impl.rs b/crates/chain/src/rusqlite_impl.rs
index 873c19a0e717caf9a1553c6710fcf6c7ab5b9eca..ba63d792fd04a0102711a75ee498bc233d295c5b 100644 (file)
--- a/crates/chain/src/rusqlite_impl.rs
+++ b/crates/chain/src/rusqlite_impl.rs
@@ -1,4 +1,4 @@
-//! Module for stuff
+//! Support for persisting `bdk_chain` structures to SQLite using [`rusqlite`].
 
 use crate::*;
 use core::str::FromStr;