sequelize: add page (#3861)

pages/common/sequelize.md

@@ -0,0 +1,24 @@
+# sequelize
+
+> Promise-based Node.js ORM for Postgres, MySQL, MariaDB, SQLite and Microsoft SQL Server.
+> More information: <https://sequelize.org/>.
+
+- Create a model and a migration file:
+
+`sequelize model:generate --name {{table_name}}`
+
+- Run the migration file:
+
+`sequelize db:migrate`
+
+- Revert all migrations:
+
+`sequelize db:migrate:undo:all`
+
+- Create a seed file with the specified name to populate the database:
+
+`sequelize seed:generate --name {{seed_filename}}`
+
+- Populate database using all seed files:
+
+`sequelize db:seed:all`