Update documentation.

README.md

@@ -13,8 +13,24 @@ Features
 - Public domain
 - Single file
 - A very simple API
+- Supports both playback and capture on _all_ backends
+- Automatic sample rate conversion, channel conversion, format conversion and channel mapping
+  - Sample rate conversion is currently low quality, but a higher quality implementation is planned
 
 
+Supported Platforms
+===================
+- Windows
+  - WASAPI
+  - DirectSound
+- Linux
+  - ALSA
+- Android
+  - OpenSL|ES
+- Other
+  - OpenAL
+  - Null (silence)
+
 
 
 Simple Playback Example

mini_al.h

@@ -7631,6 +7631,7 @@ void mal_pcm_f32_to_s32(int* pOut, const float* pIn, unsigned int count)
 //     tied to the same backend. In addition, some backends are better suited to this design.
 //   - API CHANGE: Removed the rewinding APIs because they're too inconsistent across the different backends, hard
 //     to test and maintain, and just generally unreliable.
+//   - Added helper APIs for initializing mal_device_config objects.
 //   - Null Backend: Fixed a crash when recording.
 //   - Fixed build for UWP.
 //   - Added support for f32 formats to the OpenSL|ES backend.