DOCS: Add blog post - Documentation Software

[huynhicode]

:bookmark_tabs: Summary

This PR contains updates to the Blog page.

Adds Mermaid Chart blog post: How to Choose the Right Documentation Software

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 77.29%. Comparing base (76801ff) to head (635aaf4). Report is 3 commits behind head on master.

Additional details and impacted files

[](https://app.codecov.io/gh/mermaid-js/mermaid/pull/5519?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 #5519 +/- ## ========================================== - Coverage 78.81% 77.29% -1.52% ========================================== Files 175 175 Lines 14531 14531 Branches 868 868 ========================================== - Hits 11452 11232 -220 - Misses 2871 3091 +220 Partials 208 208 ``` | [Flag](https://app.codecov.io/gh/mermaid-js/mermaid/pull/5519/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/5519/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=mermaid-js) | `82.41% <ø> (-1.88%)` | :arrow_down: | | [unit](https://app.codecov.io/gh/mermaid-js/mermaid/pull/5519/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 8 files with indirect coverage changes](https://app.codecov.io/gh/mermaid-js/mermaid/pull/5519/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=mermaid-js)