add git files

.gitattributes

@@ -1,2 +1,4 @@
-# Auto detect text files and perform LF normalization
+*.v    text diff=verilog
-* text=auto
+*.vh   text diff=verilog
+*.sv   text diff=systemverilog
+*.svh  text diff=systemverilog

.gitignore

@@ -0,0 +1,2 @@
+# Folders
+assignments

README.md

@@ -1,2 +1,4 @@
 # nand2tetris-project
- Hack computer, built following nand2tetris course
+ Hack computer, built following nand2tetris course using Verilog
+
+The gates are designed following a behavioural modelling philosophy (mostly for learning purposes, even though a data flow modelling system would be preferible for big projects)