From 94edc594d7d023f82eab9618619be4aaaf646132 Mon Sep 17 00:00:00 2001
From: debris <marek.kotewicz@gmail.com>
Date: Fri, 4 Dec 2015 13:12:11 +0100
Subject: [PATCH] docs

---
 src/sha3.rs     | 14 ++++++++++++++
 src/triehash.rs |  3 +--
 2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/src/sha3.rs b/src/sha3.rs
index 11d7ca274..b3676720c 100644
--- a/src/sha3.rs
+++ b/src/sha3.rs
@@ -1,8 +1,22 @@
+//! Wrapper around tiny-keccak crate.
+
 use std::mem::uninitialized;
 use tiny_keccak::Keccak;
 use bytes::BytesConvertable;
 use hash::{FixedHash, H256};
 
+/// Types implementing this trait are sha3able.
+/// 
+/// ```
+/// extern crate ethcore_util as util;
+/// use std::str::FromStr;
+/// use util::sha3::*;
+/// use util::hash::*;
+/// 
+/// fn main() {
+/// 	assert_eq!([0u8; 0].sha3(), H256::from_str("c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470").unwrap());
+/// }
+/// ```
 pub trait Hashable {
 	fn sha3(&self) -> H256;
 }
diff --git a/src/triehash.rs b/src/triehash.rs
index 93d21aacc..eea79e9d4 100644
--- a/src/triehash.rs
+++ b/src/triehash.rs
@@ -1,4 +1,4 @@
-//! Generete trie root.
+//! Generetes trie root.
 //! 
 //! This module should be used to generate trie root hash.
 
@@ -10,7 +10,6 @@ use rlp;
 use rlp::RlpStream;
 use vector::SharedPrefix;
 
-// todo: verify if example for ordered_trie_root is valid
 /// Generates a trie root hash for a vector of values
 /// 
 /// ```rust