REQUEST ON /articles
GET request on /articles to get all the articles present.
POST request on /articles to add new article.
DELETE request on /articles to delete all the present articles
REQUEST ON /articles/<article_name>
GET request on /articles/article_name to get the article details.
POST request on /articles/article_name to update the whole article.
PATCH request on /articles/article_name to update specific content of the article.
DELETE request on /articles/article_name to delete that article.