Programming Languages Population according to StackOverflow

Here is what this web app does

Collects Data from StackOverflow tags collection(language names, questions count, unanswered questions count)
Polishes the data, counts the answered questions count and the percentage of answered questions of each language
Using Google Charts, this app converts the collected raw data to virtualized charts( e.g. Tables, Pie Charts, Bar Charts)

Here are services and Programming Languages which are used in this project

Git and GitHub for hosting project's files and making it available to everyone.
Heroku for allowing the app to live online and be accessible by everyone.
Node.JS for collecting and polishing data, making Charts and a server for Heroku.
JavaScript for overall programming.
HTML and CSS for designing Heroku server.
StackOverflow's official REST API and Node.js Module.
Request, Cheerio, json-server, node-async-loop Modules.
JSON files for keeping data. ujhFJD

What can you do for helping this project grow

Visit my project's Heroku page(https://stackoverflow-tags-collector.herokuapp.com/)
Contribute my project it you have an idea to extend my project.