Documentation updates

Readme.md

@@ -314,8 +314,10 @@ See the v1.0.1 first official relase [release notes](https://github.com/f4exb/sd
 
 <h2>To Do</h2>
 
-  - Tx support for devices like Blade-RF or Hack-RF and simple file output (started)
-  - Tx channels to feed Tx devices (started)
+Since version 3.3.2 the "todos" are in the form of tickets opened in the Issues section with the label "feature". When a specific release is targeted it will appear as a milestone. Thus anyone can open a "feature" issue to request a new feature.
+
+Other ideas:
+
   - Possibility to connect channels for example Rx to Tx or single Rx channel to dual Rx channel supporting MI(MO) features like 360 degree polarization detection. Introduce the notion of ports of the same physical device.
   - Specialize plugins into channel and sample source plugins since both have almost complete different requirements and only little in common
   - 32 bit samples for the Channel Analyzer

plugins/channelrx/demodatv/readme.md

@@ -123,7 +123,7 @@ This combo lets you chose between a 30, 25, 20 and 16 FPS. This is the resulting
 
 <h3>3: Synchronization standard</h3>
 
-This combo lets you set the standard type relating essentially to frame synchronization and blank (black) lines. Choice is between:
+This combo lets you set the TV standard type. This sets the number of lines per complete image, frame synchronization parameters and number of blank (black) lines. Choice is between:
 
   - PAL625L: this is based on the classical 625 lines PAL system. It uses 7 or 8 synchronization lines depending on the half frame (field). It has also 17 black lines on the top of each half frame.
   - PAL525L: the only difference with PAL625L is the number of black lines which is down to 15