Add README

Signed-off-by: Jesús Castro <x51v4n@gmail.com>

Author: jcstr

README.md

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+# MateFacil Demo
+
+Demonstration version of **MateFacil** - A web app to evaluate skills and knowledge.
+
+**MateFacil** is a web app to help both professors and students to learn and evaluate the skills and knowledge gained from the semester's course.
+In this particular case, we decided to create a web app that can create or 'generate' mathematical problems.
+On this first version (MateFacil 0.1) we focus on arithmethical and inequality problems.
+
+This demo shows a partial approach about how the solution was implemented for the version `0.1`. 
+
+This repository will be used as a reference for the new developers coming to work for the project next semester and/or upcoming periods.
+
+This project is being hosted at the FOSS (Free and Open Source Software) organization **Tecnológico Mario Molina Open Source** and the main purpose for this is to
+invite students to learn and adopt community and colaborational efforts to work on a project.
+
+The main challenge of this version focus on how to execute existing code on a web app.
+The existing code refers to the generators and validators of the mathematical problems, some of them are written in C, C++ and Java.
+
+In our glossary we define:
+ - **Generator**: A piece of software that generates a _unique_ mathematical problem, say arithmetical, and once that the problem is generated it's shown on a web page that the student will be able to see.
+ - **Validator**: Another piece of software that validates the input given by the user, in this case when a student finishes an arithmetical exercise an introduces his solution through the web page.
+
+On this demo you will be able to execute a web app and see how it runs C, C++ and Java code thanks to Python's subprocesses and Django framework.
+All of the C, C++ and Java source has the purpose to be used as an example on how to make them work on a web app. 
+Have saying that, there's no generator nor validator included for this demo.
+
+
+## What will you see on this demo?
+A simple web app showing the functionality of Python's subprocesses.
+
+Screenshot:
+
+![example](https://imgur.com/sx0SX0p.jpg)
+
+
+## Steps to reproduce on your local machine
+
+### Requirements 
+ -  Python 3.8.3
+ -  Django 3.0.7
+ -  OpenJDK 14
+ -  G++ (GCC) 10.1.0
+ 
+Once you have all the requirements installed:
+ -  Download this repository
+ -  `cd matefacil`
+ -  `python manage.py runserver 0.0.0.0:8000`
+ -  Go to your browser at 0.0.0.0:8000
+ -  Enjoy!
+ 
+ 
+ ---
+ ### Authoring 
+ - [Luis Manuel Chávez Velasco](https://github.com/ManueLord21)
+ - [Jesús Castro](https://github.com/jcstr)
+
+Licence: GNU General Public License v3.0