Update README.md

Author: da-x

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "tetris-demo"
-version = "0.1.0"
+version = "0.2.0"
 authors = ["Dan Aloni <[email protected]>"]
 edition = "2018"
 

README.md

@@ -1,11 +1,12 @@
 <img src="doc/tetris.gif" align="right">
 
-# Tetris Example in Rust
+# Tetris Example in Rust, v2
 
 A Tetris example written in Rust using Piston.
 
 * For demoing basic Rust coding
-* 498 lines of code
+* 414 lines of code
+* A clear Git history that iterates on added features. See: `git log --reverse -p 855e7fddd..HEAD`
 * The completed lines are flashing
 * No scoring
 * No 'next piece view'
@@ -20,3 +21,10 @@ git clone https://github.com/da-x/tetris-demo
 cd tetris-demo
 cargo run
 ```
+
+## Changes from v1
+
+- Simplified the handling of the game state.
+- Using a HashMap instead of a Vec<Vec<_>> for board and pieces.
+- Less lines, same functionality.
+- A clear Git history that iterates on added features.