Add GitHub Guide for splashkit.io-starlight development

[NidhishaPahade]

Description

Created a GitHub Guide for onboarding and setting up the environment for SplashKit integrating NodeJS , VS Code and GitHub.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as
  expected)
• Documentation (update or new)

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can
reproduce. Please also list any relevant details for your test configuration.

• Tested in latest Chrome
• Tested in latest Firefox
• npm run build
• npm run preview

Checklist

If involving code

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings

If modified config files

• I have checked the following files for changes:
  • package.json
  • astro.config.mjs
  • netlify.toml
  • docker-compose.yml
  • custom.css

Folders and Files Added/Modified

Please list the folders and files added/modified with this pull request.

• Added:
  • src/content/docs/products/splashkit/SplashKit Tutorials/Onboarding/02-GitHub-guide.mdx
• Modified:
  • NA

Below is the preview of the guide:

[netlify]

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[netlify]

✅ Deploy Preview for strong-fairy-c1bde1 ready!

Name	Link
🔨 Latest commit	c5f613a
🔍 Latest deploy log	https://app.netlify.com/sites/strong-fairy-c1bde1/deploys/672acd376632eb0008b916c2
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[omckeon]

@NidhishaPahade Please update the PR description to use the template from this page. With screenshots put at the end.

[kay-kaushik]

Everything looks good. The guide is well-written and nicely structured. To summarise, I suggest adding the links to these important websites and to use gifs to make the guide better.

[kay-kaushik]

The links have been added as suggested. The PR looks much better and it will be very helpful for new students when they onboard.