docs: optimize SEO and add GitHub workflow files

.github/PULL_REQUEST_TEMPLATE.md

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+## Description
+
+Please describe your changes. What skill are you adding or modifying?
+
+## Checklist
+
+- [ ] My skill follows the [creation guidelines](https://github.com/sickn33/antigravity-awesome-skills/tree/main/skills/skill-creator)
+- [ ] I have run `validate_skills.py`
+- [ ] I have added my name to the credits (if applicable)
+
+## Type of Change
+
+- [ ] New Skill
+- [ ] Bug Fix
+- [ ] Documentation Update
+- [ ] Infrastructure
+
+## Screenshots (if applicable)