Added a readme and a logo.

README.md

@@ -0,0 +1,19 @@
+#![Boost.Atomic](doc/logo.png)
+
+Boost.Atomic, part of collection of the [Boost C++ Libraries](http://github.com/boostorg), implements atomic operations for various CPU architectures, reflecting the standard interface defined in C++11.
+
+### Directories
+
+* **build** - Boost.Atomic build scripts
+* **doc** - QuickBook documentation sources
+* **include** - Interface headers of Boost.Atomic
+* **src** - Compilable source code of Boost.Atomic
+* **test** - Boost.Atomic unit tests
+
+### More information
+
+* [Documentation](http://boost.org/libs/atomic)
+
+### License
+
+Distributed under the [Boost Software License, Version 1.0](http://www.boost.org/LICENSE_1_0.txt).

doc/atomic.qbk

@@ -10,6 +10,7 @@
     [authors [Bahmann, Helge]]
     [copyright 2011 Helge Bahmann]
     [copyright 2012 Tim Blechmann]
+    [copyright 2013 Andrey Semashev]
     [id atomic]
     [dirname atomic]
     [purpose Atomic operations]
@@ -736,4 +737,10 @@ work to add support for it.
 
 [endsect]
 
+[section:acknowledgements Acknowledgements]
+
+* Adam Wulkiewicz created the logo used on the [@https://github.com/boostorg/log GitHub project page]. The logo was taken from his [@https://github.com/awulkiew/boost-logos collection] of Boost logos.
+
+[endsect]
+
 [endsect]