[Docs] Issue template for blog posts #1964

[sadam-m]

Description

This PR add #

up a new issue template for blog

Notes for Reviewers

Signed commits

• Yes, I signed my commits.

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[leecalcote]

Looks great. Thank you, @sadam-m

[github-actions]

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[leecalcote]

@sadam-m please signoff on your commits, by executing the commands listed here - https://github.com/meshery/meshery.io/pull/1966/checks?check_run_id=33292689021

[sadam-m]

@leecalcote Thank you for accepting my commit.I have signed off my commits.