README: Walkthrough Video

[ErikPlachta]

Add Walkthrough video to README with how to use API

• The walkthrough video must show all of the technical acceptance criteria being met.
• The walkthrough video must demonstrate how to create the schema from the MySQL shell.
• The walkthrough video must demonstrate how to seed the database from the command line.
• The walkthrough video must demonstrate how to start the application’s server.
• The walkthrough video must demonstrate GET routes for all categories, all products, and all tags being tested in Insomnia.
• The walkthrough video must demonstrate GET routes for a single category, a single product, and a single tag being tested in Insomnia.
• The walkthrough video must demonstrate POST, PUT, and DELETE routes for categories, products, and tags being tested in Insomnia.

---

1. Show package.json
2. npm i
3. While running, update .env with info
4. MySQL -u root -p < db/schema.sql
5. npm start
6. Demonstrate API calling with Insomnia
   1. GET ALL
      1. categories
      2. products
      3. tags
   2. GET /:id
      1. categories
      2. products
      3. tags
   3. POST
      1. categories
      2. products
      3. tags
   4. PUT /:id
      1. categories
      2. products
      3. tags
   5. DELETE /:id
      1. categories
      2. products
      3. tags

[ErikPlachta]

Working on this now, everything else 100% verified.

[ErikPlachta]

Completed FULL video. Adding to repo root and closing this issue.