diff --git a/src/binary/mod.rs b/src/binary/mod.rs
index e7c378d..20916df 100644
--- a/src/binary/mod.rs
+++ b/src/binary/mod.rs
@@ -1,8 +1,8 @@
-#![allow(dead_code)]
-/// binary functions
+/// # binary module
 ///
 /// This module contains some functions that manipulate binary values.
 ///
+/// ___
 /// Author:     Christoph J. Scherr <software@cscherr.de>
 /// License:    MIT
 /// Source:     <https://git.cscherr.de/PlexSheep/plexcryptool/>
diff --git a/src/lib.rs b/src/lib.rs
index f489ba7..63bb029 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,11 +1,17 @@
 #![warn(missing_docs)]
 #![warn(clippy::missing_docs_in_private_items)]
-//! # various tools for use in cryptology contexts
 //!
 //! This is a mixed rust/python library that also offers an executable.
 //! The intended usage is the solving of tasks for cryptology and maybe math, in the context of a
+//! # various tools for use in cryptology contexts
 //! university degree. I wrote this for cryptology at DHBW Mannheim.
 //!
+//! ## main function
+//! This project contains an executable, see [main.rs](main.rs)
+//!
+//! ## lib module
+//! This project contains is a library, see [lib.rs](lib.rs).
+//! Note that this library offers Python bindings using [PyO3](pyo3.rs)
 //! ___
 //! Author:     Christoph J. Scherr <software@cscherr.de>
 //!
diff --git a/src/main.rs b/src/main.rs
index f3d58ef..21d7e1b 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -6,6 +6,12 @@
 //! # various tools for use in cryptology contexts
 //! university degree. I wrote this for cryptology at DHBW Mannheim.
 //!
+//! ## main function
+//! This project contains an executable, see [main.rs](main.rs)
+//!
+//! ## lib module
+//! This project contains is a library, see [lib.rs](lib.rs).
+//! Note that this library offers Python bindings using [PyO3](pyo3.rs)
 //! ___
 //! Author:     Christoph J. Scherr <software@cscherr.de>
 //!
diff --git a/src/math/mod.rs b/src/math/mod.rs
index d77d4bc..0dfe59f 100644
--- a/src/math/mod.rs
+++ b/src/math/mod.rs
@@ -1,4 +1,9 @@
 /// # math module
 ///
-/// funcionality for math things. Contains tedious algorithms like binary exponentiation.
+/// Funcionality for math things. Contains tedious algorithms like binary exponentiation.
+///
+/// ___
+/// Author:     Christoph J. Scherr <software@cscherr.de>
+/// License:    MIT
+/// Source:     <https://git.cscherr.de/PlexSheep/plexcryptool/>
 pub mod modexp;