Merge pull request #5 from brendanlong/blong/readme

Add dependencies to the README. Reformat and rearrange for better readability.

README.md

 # portabledsb
-A portable c++ version of the AllJoyn DSB
 
-Building:
+A portable C++ version of the AllJoyn DSB.
 
-Right now we're only building on OSX/Linux.
+The AllSeen Alliance has a Device System Bridge (DSB), which allows non-allseen devices to
+communicate on an AllJoyn bus. There's [a good document describing the software is here](https://git.allseenalliance.org/cgit/dsb.git/plain/Docs/AllJoyn%20-%20Device%20System%20Bridge%20-%20Whitepaper%20v1.0.pdf).
 
-1. export ALLJOYN_INSTALL_DIR=[path to your build of alljouyn core]
-2. make [options]
+The code was contributed by Microsoft and is writting using C++/CLI (WinRT). This project's
+goal is to re-create that software in standard C++ so that it can be run on Windows, Linux, and
+Mac.
 
-[options]
-* DEBUG -- debug build (-g) otherwise -O2 is used
-* V     -- verbose output (skip if you want cleaner output)
+The WinRT version is here:
 
+  <https://git.allseenalliance.org/cgit/dsb.git/>
 
-The AllSeen Alliance has a Device System Bridge (DSB), which allows non-allseen devices to
-communicate on an AllJoyn bus. There's a good document describing the software here:
+## Dependencies
 
-  https://git.allseenalliance.org/cgit/dsb.git/plain/Docs/AllJoyn%20-%20Device%20System%20Bridge%20-%20Whitepaper%20v1.0.pdf
+You will need libaries and development headers for:
 
-The code was contributed by Microsoft and is writting using c++/cx (WinRT). This project's
-goal is to re-create that software in std c++ so that it can be run on Windows, Linux, and
-Mac. 
+  * [The AllJoyn standard core (C++)](https://allseenalliance.org/framework/download) v15.09a
+  * libxml2
+  * OpenSSL's libcrypto
 
-The WinRT version is here:
+See: [AllJoyn's instructions for building on Linux](https://allseenalliance.org/framework/documentation/develop/building/linux)
+
+## Building
+
+Right now we're only building on OSX/Linux.
+
+ 1. export ALLJOYN_INSTALL_DIR=[path to your build of alljoyn core]
+ 2. make [options]
+
+`[options]`
 
-  https://git.allseenalliance.org/cgit/dsb.git/
+  * DEBUG -- debug build (-g) otherwise -O2 is used
+  * V     -- verbose output (skip if you want cleaner output)