Update README.md

Merge pull request #12 from MohamedHNoor/localStorage

add js file in html file

link js/storage.js file to index.html

add js localstorage

add onchange in input field

Merge pull request #10 from MohamedHNoor/form-validation

fix form submition

add submit method to the form after validation

fix space error

fix linters error

fix duplicate error

fix stylelint

fix style error

fix styles