Addition of gitignore
README.md for the 2.0 version
Update .gitignore for .DS_Store files
Replace first_movie.js -> movie_object.js + POO
Remove similar_movie.js. Replacement with movie_object.js
Replace save_pdf_file.js -> pdf_file.js + POO
Remove first_movie.js. See now movie_object.js
Remove save_pdf_file.js. See now pdf_file.js
Update README.md
Modification insert. JS files
POO
Update main.js due to objects changements
Addition of dev doc