[rpc] Show in the docs that the RPC APIs are feature-gated

diff --git a/src/blockchain/mod.rs b/src/blockchain/mod.rs
index ab789c4a7cbdcc09b31fc0677d57f1c1a5f83768..ecd9e6cd62b183446bcc274b08d5981ab6518a39 100644 (file)
--- a/src/blockchain/mod.rs
+++ b/src/blockchain/mod.rs
@@ -44,6 +44,7 @@ pub use self::electrum::ElectrumBlockchain;
 pub use self::electrum::ElectrumBlockchainConfig;
 
 #[cfg(feature = "rpc")]
+#[cfg_attr(docsrs, doc(cfg(feature = "rpc")))]
 pub mod rpc;
 #[cfg(feature = "rpc")]
 pub use self::rpc::RpcBlockchain;