Clarify PR template checklist wording

Update description guideline from "no mention of Python" to "concise
and short" for clarity. Adjust Rising Star formatting for consistency.

🤖 Generated with Claude Code (https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>

Author: vinta

.github/PULL_REQUEST_TEMPLATE.md

@@ -3,14 +3,14 @@
 - [ ] One link per Pull Request
 - [ ] PR title format: `Add project-name`
 - [ ] Entry format: `* [project-name](url) - Description ending with period.`
-- [ ] Description is concise (no mention of "Python")
+- [ ] Description is concise and short
 
 ## Why This Project Is Awesome
 
 Which criterion does it meet? (pick one)
 
 - [ ] **Industry Standard** - The go-to tool for a specific use case
-- [ ] **Rising Star** - 5,000+ stars in <2 years, significant adoption
+- [ ] **Rising Star** - 5000+ stars in < 2 years, significant adoption
 - [ ] **Hidden Gem** - Exceptional quality, solves niche problems elegantly
 
 Explain: