minor docs fixes

src/lib.rs

@@ -108,7 +108,8 @@
 //! you could schedule a fixed amount of handlers inside a
 //! [threadpool](https://docs.rs/threadpool/latest/threadpool/).
 #![no_std]
-#![cfg_attr(docsrs, feature(doc_auto_cfg))]
+// Show which crate feature enables conditionally compiled APIs in documentation.
+#![cfg_attr(docsrs, feature(doc_cfg, doc_auto_cfg))]
 #[cfg(feature = "alloc")]
 extern crate alloc;
 #[cfg(any(feature = "std", test))]

src/source.rs

@@ -27,7 +27,7 @@
 //! 4. A Finished PDU will be awaited, for example one generated using
 //!    [spacepackets::cfdp::pdu::finished::FinishedPduCreator].
 //!
-//! ### Acknowledged transfer (*not implemented yet*)
+//! ### Acknowledged transfer
 //!
 //! 4. A EOF ACK packet will be awaited, for example one generated using
 //!    [spacepackets::cfdp::pdu::ack::AckPdu].