Added: downloading and returning wikipedia articles

internal/article/irepository.go

@@ -0,0 +1,9 @@
+package article
+
+import "database/sql"
+
+type IArticleRepository interface {
+	CreateArticle(tx *sql.Tx, data ArticleCreateModel) error
+	GetArticlesByTitle(tx *sql.Tx, title string) ([]ArticleModel, error)
+	DeleteAllArticles(tx *sql.Tx) error
+}