[BUG] Fix Markdown formatting of non-consecutive headers: Open Data subchapter

[malvikasharan]

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Summary of Issue

• Part of [BUG] Markdown header levels need to be corrected (28 PRs for HacktoberFest participants) #1321

The Turing Way chapters are written in MarkDown format. Each chapter has a header (top-level header denoted by single # - h1 tag) and subheaders (## - h2, ### - h3, #### - h4 tags).

A standard expected format should follow # (h1 tag) -> ## (h2 tag) -> ### (h3 tag) and so on in sequence.

What needs to be done

The Open Research's subchapters have non-consecutive header levels (instead of starting from h1, they start at h2, or some chapters have h1->h3, or h2->h4 instead of h1->h2->h3->h4 headers) which needs to be fixed.

• reproducible-research/open/open-data.md currently starts with h2 tags. All headers should be decreased by one level (h2 should be h1, h3 should be h2, h4 should be h3 headers and so on)

Who can help

Anyone who would like to participate in Hacktoberfest or contribute to The Turing Way GitHub repository for the first time easier to do locally (by git) but not mandatory

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[ikayz]

@malvikasharan I would like to work on this issue too 😁