New article model

[eidun10]

Initialised Articles MVC structure with template code

TODO:
Work on failing tests:

Failure:
ArticleTest#test_has_search_functionality [test/models/article_test.rb:11]:
Expected Article(id: integer, title: string, content: text, author: string, date: date, created_at: datetime, updated_at: datetime) (Class) to respond to #search.


bin/rails test test/models/article_test.rb:10

F

Failure:
ArticleTest#test_starts_with_no_articles [test/models/article_test.rb:7]:
Expected: 0
  Actual: 2


bin/rails test test/models/article_test.rb:6

F

Failure:
ArticleTest#test_deletes_an_article [test/models/article_test.rb:46]:
Expected: 0
  Actual: 2


bin/rails test test/models/article_test.rb:43

E

Error:
ArticleTest#test_displays_relevant_articles_in_search_results:
NoMethodError: undefined method `search' for Article:Class
    test/models/article_test.rb:66:in `block in <class:ArticleTest>'


bin/rails test test/models/article_test.rb:63

......E

Error:
ArticleTest#test_returns_accurate_search_results:
NoMethodError: undefined method `search' for Article:Class
    test/models/article_test.rb:58:in `block in <class:ArticleTest>'


bin/rails test test/models/article_test.rb:55```