feat: medium link and roadmap update

[bxpana]

Update to v1 docs to include a better link for Medium and add additional information for our roadmap

[github-actions[bot]]

Visit the preview URL for this PR (updated for commit 8692adf):

• https://zksync-web-docs--v-refs-pull-297-merge-rskddgrn.web.app
• https://staging-docs-zksync--v-refs-pull-297-merge-skz5zszo.web.app

_{(expires Wed, 03 Aug 2022 21:22:04 GMT)}

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[github-actions[bot]]

:tada: This PR is included in version 2.24.0 :tada:

The release is available on GitHub release

Your semantic-release bot :package::rocket: