Change live demo link in readme

Change deployment link in readme

Merge pull request #10 from anewman15/master

Update readme with new heroku url

Update package.json

Merge pull request #9 from anewman15/development

Merge pull request #8 from anewman15/milestone-5-styling

Change readme section

Update readme with app screenshot

Connect CategoryFilter comp to store and update category dropdown

Create Empty component and use conditional rendering in BooksList component

Use flex-grow, add placeholder text in form elements

Style filterBooks and AddNewBook components

Update BooksForm.js category-filter and form-input

Create css classes and style CategoryFilter