Changed the links for vsf2 from next branch to vsf 2 repo(#503)

[ymaheshwari1]

Related Issues

#503

closes #

Short Description of the PR

Updated the VSF next links in the doc

Screenshots of Visual Changes before/after (if There Are Any)

Pull Request Checklist

• I have updated the Changelog (V1) and mentioned all breaking changes in the public API.
• I have documented all new public APIs and made changes to existing docs mentioning the parts I've changed so they're up to date.
• I have tested my Pull Request on production build and (to my knowledge) it works without any issues

• I have followed naming conventions

Upgrade Notes and Changelog

• No upgrade steps required (100% backward compatibility and no breaking changes)
• I've updated the Upgrade notes and Changelog on how to port existing Vue Storefront sites with this new feature

Contribution and Currently Important Rules Acceptance

• I read and followed contribution rules