update document

README.md

@@ -1,4 +1,4 @@
-[![Travis CI Status](https://travis-ci.org/flier/pyfasthash.svg?branch=master)](https://travis-ci.org/flier/pyfasthash)
+# Introduction [![Travis CI Status](https://travis-ci.org/flier/pyfasthash.svg?branch=master)](https://travis-ci.org/flier/pyfasthash)
 
   pyhash is a python non-cryptographic hash library. It provide several common hash algorithms with C/C++ implementation for performance.
 
@@ -17,20 +17,38 @@
 2805756500L
 ```
 
-Note: Please use pyhash to install it from pypi
+# Installation
+
+Please use pyhash to install it from pypi
 
 ```bash
-$sudo easy_install pyhash
+$sudo pip install pyhash
 ```
 
+Notes: `pyhash` depends on `Boost` library to build
+
+- Ubuntu
+
+> sudo apt-get install libboost-all-dev
+
+- CentOS
+
+> sudo yum install boost-devel
+
+- OSX
+
+> brew install boost
+
+# Algorithms
+
 pyhash support the following hash algorithms
 
-* [FNV](http://isthe.com/chongo/tech/comp/fnv/) (Fowler-Noll-Vo) hash
+- [FNV](http://isthe.com/chongo/tech/comp/fnv/) (Fowler-Noll-Vo) hash
   - fnv1_32
   - fnv1a_32
   - fnv1_64
   - fnv1a_64
-* [MurmurHash](http://code.google.com/p/smhasher/) 1/2/3
+- [MurmurHash](http://code.google.com/p/smhasher/) 1/2/3
   - murmur1_32
   - murmur1_aligned_32
   - murmur2_32
@@ -42,37 +60,37 @@ pyhash support the following hash algorithms
   - murmur3_32
   - murmur3_x86_128
   - murmur3_x64_128
-* [lookup3](http://burtleburtle.net/bob/hash/doobs.html)
+- [lookup3](http://burtleburtle.net/bob/hash/doobs.html)
   - lookup3 # base on sys.byteorder
   - lookup3_little
   - lookup3_big
-* [SuperFastHash](http://www.azillionmonkeys.com/qed/hash.html)
+- [SuperFastHash](http://www.azillionmonkeys.com/qed/hash.html)
   - super_fast_hash
-* [City Hash](https://code.google.com/p/cityhash/)
+- [City Hash](https://code.google.com/p/cityhash/)
   _ city_32
   - city_64
   - city_128
   - city_crc_128
-* [Spooky Hash](http://burtleburtle.net/bob/hash/spooky.html)
+- [Spooky Hash](http://burtleburtle.net/bob/hash/spooky.html)
   - spooky_32
   - spooky_64
   - spooky_128
-* [FarmHash](https://github.com/google/farmhash)
+- [FarmHash](https://github.com/google/farmhash)
   - farm_32
   - farm_64
   - farm_128
-* [MetroHash](https://github.com/jandrewrogers/MetroHash)
+- [MetroHash](https://github.com/jandrewrogers/MetroHash)
   - metro_64
   - metro_128
   - metro_crc_64
   - metro_crc_128
-* [MumHash](https://github.com/vnmakarov/mum-hash)
+- [MumHash](https://github.com/vnmakarov/mum-hash)
   - mum_64 **NEW!**
-* [T1Hash](https://github.com/leo-yuriev/t1ha)
+- [T1Hash](https://github.com/leo-yuriev/t1ha)
   - t1_32 **NEW!**
   - t1_32_be **NEW!**
   - t1_64 **NEW!**
   - t1_64_be **NEW!**
-* [XXHash](https://github.com/Cyan4973/xxHash)
+- [XXHash](https://github.com/Cyan4973/xxHash)
   - xx_32 **NEW!**
-  - xx_64 **NEW!**
+  - xx_64 **NEW!**