add the new ConPTY samples to the readme

Now that both the ConPTY samples (microsoft#247 and microsoft#260) are merged, mention them on the main repository README.

Author: waf

README.md

@@ -16,7 +16,9 @@ In addition, the team reserve the right to actively manage issues, closing dupli
 ## Tools & Samples
 You'll also find assorted Console tools, samples, including the following: 
 
-* [ColorTool](https://github.com/Microsoft/Console/tree/master/tools/ColorTool).
+* [ColorTool](https://github.com/Microsoft/Console/tree/master/tools/ColorTool) - A tool for changing the color scheme of the Windows console.
+* [EchoCon](https://github.com/Microsoft/console/tree/master/samples/ConPTY/EchoCon) - A C++ sample application that illustrates how to use the new Win32 Pseudo Console (ConPTY).
+* [MiniTerm](https://github.com/Microsoft/console/tree/master/samples/ConPTY/MiniTerm) - A C# sample terminal that illustrates how to use ConPTY.
 
 ### Tool Build Status