message: readme: merge prebuild section into supported platforms
diff: @@ -19,16 +19,20 @@ It is **strongly recommended** that you use LevelUP in preference to LevelDOWN u
  See the section on <a href="#safety">safety</a> below for details of known unsafe operations with LevelDOWN.
  <a name="platforms"></a>
  -Tested & supported platforms
  +Supported platforms
  ----------------------------
  +We aim to support *at least* Active LTS and Current Node.js releases. LevelDOWN ships with prebuilt binaries for [many platforms](https://github.com/Level/leveldown/releases) and is known to work on:
  +
  * **Linux** (including ARM platforms such as Raspberry Pi *and Kindle!*)
  * **Mac OS**
  * **Solaris** (SmartOS & Nodejitsu)
  * **FreeBSD**
  * **Windows**
  - * Node 0.10 and above only, see [issue #5](https://github.com/level/levelup/issues/5) for more info
  - * See installation instructions for *node-gyp* dependencies [here](https://github.com/TooTallNate/node-gyp#installation), you'll need these (free) components from Microsoft to compile and run any native Node add-on in Windows.
  +
  +When installing LevelDOWN, `prebuild-install` will install prebuilt binaries from GitHub if they exist and fallback to a compile step if they don't. In that case you'll need a [valid `node-gyp` installation](https://github.com/nodejs/node-gyp#installation).
  +
  +If you don't want to use the prebuilt binary for the platform you are installing on, specify the `--build-from-source` flag when you install. If you are working on LevelDOWN itself and want to re-compile the C++ code it's enough to do `npm install`.
  <a name="api"></a>
  ## API
  @@ -323,16 +327,6 @@ See the [contribution guide](https://github.com/Level/community/blob/master/CONT
  A large portion of the Windows support comes from code by [Krzysztof Kowalczyk](http://blog.kowalczyk.info/) [@kjk](https://twitter.com/kjk), see his Windows LevelDB port [here](http://code.google.com/r/kkowalczyk-leveldb/). If you're using LevelUP on Windows, you should give him your thanks!
  -
  -Prebuilt binaries
  ------------------
  -
  -LevelDOWN uses `prebuild` and `prebuild-install` for handling prebuilt binaries. See [this list](https://github.com/Level/leveldown/releases) of supported prebuilt platform binaries. When installing LevelDOWN `prebuild-install` will install prebuilt binaries from GitHub if they exist and fallback to a compile step if they don't.
  -
  -If you are working on LevelDOWN and want to re-compile the C++ code it's enough to do `npm install`.
  -
  -If you don't want to use the `prebuild` for the platform you are installing on, specify the `--build-from-source` flag when you install.
  -
  <a name="license"></a>
  License &amp; copyright
  -------------------
  