v0.2.0

This release contains improving Provider.

• eslint bf75222
• Add tests 4644c62
• Improve Readme af42432
• Improve Task Type 4d7924e
• Improve task de43202
• Add eslint bcb7121
• Improve Provider e5c3761
• Add relative url support when fetcher e4c47a0
• Add doc 16702bf

v0.1.9...v0.2.0