docs(readme): change wrong package name reference

[C0ZEN]

Changes description

Minor README.md change related to the package name in the install section.

Checklist

• [x] Make sure you are requesting to pull a topic/feature/bugfix branch. Please, don't request directly from your main!
• [x] Check commits & PR names matches our requested structure. It must follow the https://www.conventionalcommits.org pattern.
• [x] Check your code additions will fail neither code linting checks.
• [x] I have reviewed the submitted code.
• [x] I have tested on related showcases.
• [x] If it includes design changes, please ask for a review design-system-core-team-design GitHub team.

Does this introduce a breaking change?

• No

[CLAassistant]

All committers have signed the CLA.

[C0ZEN]

@lauthieb why assign it to me? I cannot merge it 🤔

[lauthieb]

Hello @C0ZEN thanks a lot for your contribution! We always assign the person that makes the contribution. I just merged it :) thank you!