Add te-directories

te-backend/.circleci/config.yml

te-backend/.dockerignore

te-backend/.gitignore

te-backend/.gitlab-ci.yml

te-backend/.travis.yml

te-backend/Dockerfile

te-backend/README.md

te-backend/app.js

te-backend/config/index.js

te-backend/config/passport.js

te-backend/models/Article.js

te-backend/models/Comment.js

te-backend/models/User.js

te-backend/package-lock.json

te-backend/package.json

te-backend/project-logo.png

te-backend/public/.keep

te-backend/routes/api/articles.js

te-backend/routes/api/index.js

te-backend/routes/api/profiles.js