v0.2.0 - 🎉🎊🍾 Release version 0.2.0 package & documentation

🎉🎊🍾 New Feature

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1. Release latest version of documentation.
2. Update README.
3. Update package to version 0.2.0.

🔧🔩⚙️ Refactor

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1. Remove sub-package .persistence.
2. Add new sub-package .components.persistence.

⚒⚒💣 Bug Fix

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1. Fix the issue about GitHub Action configuration.
2. Fix the issue about incorrect image path in README.
3. Fix the issue about incorrect implementations in test and example.

Full Changelog: v0.1.0...v0.2.0

v0.1.0 - First Draft of Crawler Framework for Python

First draft

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1. Components:
   Different components response of different things.
   1-1. HTTP request sender
   1-2. HTTP response parser
   1-3. Data processing handler
   1-4. Persistence layer

2. Crawler roles:
   Different crawler role works in different way.
   2-1. SimpleCrawler
   2-2. AsyncSimpleCrawler
   2-3. ExecutorCrawler
   2-4. PoolCrawler