BFM demod: updated readme

Readme.md

@@ -184,6 +184,7 @@ For Debian Jessie or Stretch:
   - Binaural option for SSB demod
   - DSB option for SSB
   - Mute option for NFM channel
+  - New Broadcast FM demodulator with stereo support
   
 <h2>Major redesign</h2>
 
@@ -212,7 +213,7 @@ For Debian Jessie or Stretch:
   - Allow arbitrary sample rate for channelizers and demodulators (not multiple of 48 kHz). Prerequisite for polyphase channelizer
   - Implement polyphase channelizer
   - Level calibration  
-  - Enhance WFM (stereo, RDS?)
+  - Enhance Broadcast FM with RDS
   - Even more demods ...
   
 <h1>Developper's notes</h1>