[ADD] Basic readme

Author: Jeffresh

README.md

@@ -1,2 +1,11 @@
-# backtracking_algorithm
-backtracking algorithm implementation using matlab
+# Backtracking algorithm
+
+### Abstract
+Backtracking algorithm implementation using matlab by my own, without using toolboxs.
+
+### Introduction
+
+In this repo you will find a set of functions that allow you build a neural network, to regression or clasiffication problemas, using
+the brack propagation algorithm and the sigmoid function as the activation function.
+
+The structures and functions developed are all fully parametrized so you can desing your own neuarl network architecture, and implement other activation function and use them easily.