add GitHub FUNDING.yml for sponsor button with 4 platforms

Co-Authored-By: Claude <noreply@anthropic.com>

.github/FUNDING.yml

@@ -0,0 +1,14 @@
+# Sponsorship links for shanraisshan/claude-code-best-practice
+# GitHub renders these as "Sponsor" button options on the repo page
+
+# GitHub Sponsors (via Open Source Collective fiscal host → Wise → Standard Chartered)
+github: shanraisshan
+
+# Patreon (→ Payoneer → Meezan/JS Bank) - works in Pakistan
+patreon: shanraisshan
+
+# Buy Me a Coffee (requires Stripe — set up via Stripe Atlas for Pakistan)
+buy_me_a_coffee: shanraisshan
+
+# Ko-fi (requires PayPal — limited in Pakistan, but free to set up)
+ko_fi: shanraisshan