@@ -1,14 +1,24 @@
 # Python features examples by releases
 
-* [2.0](2.0.py), [2.1](2.1.py), [2.2](2.2.py), [2.3](2.3.py), [2.4](2.4.py), [2.5](2.5.py), [2.6](2.6.py), [2.7](2.7.py)
-* [3.0](3.0.py), [3.1](3.1.py), [3.2](3.2.py), [3.3](3.3.py), [3.4](3.4.py), [3.5](3.5.py), [3.6](3.6.py), [3.7](3.7.py), [3.8](3.8.py), [3.9](3.9.py)
+## [2.0](2.0.py), [2.1](2.1.py), [2.2](2.2.py), [2.3](2.3.py), [2.4](2.4.py), [2.5](2.5.py), [2.6](2.6.py), [2.7](2.7.py)
+## [3.0](3.0.py), [3.1](3.1.py), [3.2](3.2.py), [3.3](3.3.py), [3.4](3.4.py), [3.5](3.5.py), [3.6](3.6.py), [3.7](3.7.py), [3.8](3.8.py), [3.9](3.9.py)
 
-Usage:
+## Features
+* Minimal and practical self descriptive as possible source code.
+  (Please read references for explanations)
+* Complete and ready to copy-paste into an your application.
+* Runnable in-place. (No need to copy paste snippets from documentation
+  into an interpreter)
+* Verifiable. Internal tests provides reliability and durability. You can easily add
+  new features and run tests to assure code validity.
+
+## Usage
 * Read sources
 * 'assert' statements in the sources show expected results
 * Run 'make' or any example manually for validation and unit testing
-* Welcome to improve and add new features
+* Improvements and new features are welcome
 
-References
+## References
 * [What’s New in Python](https://docs.python.org/3.10/whatsnew/index.html)
 * [Minimal working example](https://en.wikipedia.org/wiki/Minimal_working_example)
+* [Minimal, Complete, and Verifiable Example](https://stackoverflow.com/help/mcve)