Copier template.

What's Changed

• Add hyperlinks for badges. by @huxuan in huxuan#6
• More contents for README. by @huxuan in huxuan#7
• Refine README. by @huxuan in huxuan#8
• Rename lint-test.yml to ci.yml with badges refined. by @huxuan in huxuan#9
• Add isort in pre-commit and CI (with Makefile). by @huxuan in huxuan#10
• Refine roadmap in README. by @huxuan in huxuan#11
• Reorder badges. by @huxuan in huxuan#12
• Fix sponsors link. by @huxuan in huxuan#13
• Run CI for pull request synchronize event only. by @huxuan in huxuan#14
• Run CI for main branch push. by @huxuan in huxuan#15
• Add copier template. by @huxuan in huxuan#16

Full Changelog: huxuan/ss-python@v0.0.3...v0.0.4