DOCS: update Announcement bar link

[huynhicode]

:bookmark_tabs: Summary

This PR updates the Announcement bar link. Current link is going to 404 page.

Resolves # n/a

:straight_ruler: Design Decisions

Design decisions made by the Mermaid Chart team.

:clipboard: Tasks

Make sure you

• [x] :book: have read the contribution guidelines
• [ ] :computer: have added necessary unit/e2e tests.
• [ ] :notebook: have added documentation. Make sure MERMAID_RELEASE_VERSION is used for all new features.
• [ ] :bookmark: targeted develop branch

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[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 43.37%. Comparing base (08a7f66) to head (f86da19). Report is 4 commits behind head on master.

Additional details and impacted files

[](https://app.codecov.io/gh/mermaid-js/mermaid/pull/5394?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=mermaid-js) ```diff @@ Coverage Diff @@ ## master #5394 +/- ## =========================================== - Coverage 77.29% 43.37% -33.93% =========================================== Files 175 23 -152 Lines 14531 5130 -9401 Branches 868 23 -845 =========================================== - Hits 11232 2225 -9007 + Misses 3091 2904 -187 + Partials 208 1 -207 ``` | [Flag](https://app.codecov.io/gh/mermaid-js/mermaid/pull/5394/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=mermaid-js) | Coverage Δ | | |---|---|---| | [e2e](https://app.codecov.io/gh/mermaid-js/mermaid/pull/5394/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=mermaid-js) | `?` | | | [unit](https://app.codecov.io/gh/mermaid-js/mermaid/pull/5394/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=mermaid-js) | `43.37% <ø> (ø)` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=mermaid-js#carryforward-flags-in-the-pull-request-comment) to find out more. [see 171 files with indirect coverage changes](https://app.codecov.io/gh/mermaid-js/mermaid/pull/5394/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=mermaid-js)