Update release date for 'Skip Is Now Free' post

[cedricbahirwe]

Thank you for contributing to the Skip project! Please use this space to describe your change and add any labels (bug, enhancement, documentation, etc.) to help categorize your contribution.

Skip Pull Request Checklist:

• REQUIRED: I have signed the Contributor Agreement
• REQUIRED: I have tested my change locally with swift test
• OPTIONAL: I have tested my change on an iOS simulator or device
• OPTIONAL: I have tested my change on an Android emulator or device

[cla-bot]

Thank you for your pull request and welcome to the Skip community. We require contributors to sign our contributor license agreement (CLA), and we don't seem to have the user(s) @cedricbahirwe on file. In order for us to review and merge your code, for each noted user please add your GitHub username to Skip's .clabot file

[marcprux]

Thanks!