docs: improving developer experience

[a0m0rajab]

What does this PR do?

This PR helps to improve the developer experience by adding the next:

• Feedback if conventional commit was not followed
• Welcoming new users

relates #9343

Type of change

• Chore (refactoring code, technical debt, workflow improvements)
• New feature (non-breaking change which adds functionality)

How should this be tested?

This can be tested when a new PR is opened or a new Issue has been opened by first contributors.

Mandatory Tasks

• Make sure you have self-reviewed the code. A decent size PR without self-review might be rejected.

[vercel]

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Name	Status	Preview	Comments	Updated (UTC)
ui	❌ Failed (Inspect)			Jun 19, 2023 2:51pm

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[github-actions]

📦 Next.js Bundle Analysis for @calcom/web

This analysis was generated by the Next.js Bundle Analysis action. 🤖

This PR introduced no changes to the JavaScript bundle! 🙌

[keithwillcode]

Thanks a lot for this! Just have a few things we should update.

[keithwillcode]

Let's change this filename to be welcome-new-contributors. welcome-newers sounds odd

[a0m0rajab]

Updated the PR based on @keithwillcode comments.

[keithwillcode]

@a0m0rajab Thanks for the updates! I'm going to test this out.

[a0m0rajab]

@keithwillcode Thank you for merging this! Will be working on the other suggestions when I got the bandwidth.