Enhance GitLab CI/CD Quick Start Guide with Practical Examples and Modern Syntax

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Overview

Improve the GitLab CI/CD Quick Start Guide with practical examples, modern syntax, and better troubleshooting guidance.

Files to Modify

Primary file: doc/ci/quick_start/_index.md

Problem Statement

  • Limited practical examples for different programming languages
  • Missing troubleshooting guidance for common CI/CD issues
  • Some content uses outdated syntax (only/except vs rules)
  • Lacks coverage of key CI/CD concepts (artifacts, caching, variables)

Acceptance Criteria

  • Add practical examples for 2–3 programming languages (Node.js, Python)
  • Include troubleshooting section with common issues/solutions
  • Update deprecated syntax to modern GitLab CI/CD best practices
  • Add examples of artifacts and caching usage
  • Improve explanations of key concepts for better clarity
Edited by 🤖 GitLab Bot 🤖