Update link to snappy home page in README.md

Part of an effort to update links...

Would also appreciate ideas on where to send requests
to update snappy-related links elsewhere, as suggested
on the "snappy-compression" mailing list:
https://groups.google.com/d/msg/snappy-compression/iKpuTpTcjOI/-1ryGHegBgAJ

Author: slel

README.rst

@@ -13,9 +13,9 @@ Dependencies
 
   You can install Snappy C library with following commands:
 
-  - APT: :code:`sudo apt-get install libsnappy-dev`
-  - RPM: :code:`sudo yum install libsnappy-devel`
-  - Brew:  :code:`brew install snappy`
+  - APT:  :code:`sudo apt-get install libsnappy-dev`
+  - RPM:  :code:`sudo yum install libsnappy-devel`
+  - Brew: :code:`brew install snappy`
 
 To use with pypy:
 
@@ -118,7 +118,7 @@ You can get help by running
 
 
 Snappy - compression library from Google (c)
- http://code.google.com/p/snappy
+ http://google.github.io/snappy
 
 Frequently Asked Questions
 ==========================