Update pull_request_template.md

.github/pull_request_template.md

@@ -25,6 +25,23 @@ I have...
 - [ ]  All CI checks have passed
 - [ ]  Added relevant `godoc` [comments](https://blog.golang.org/godoc-documenting-go-code)
 
+SDK Checklist
+- [ ] Import/Export Genesis
+- [ ] Registered Invariants
+- [ ] Registered Events
+- [ ] Updated openapi.yaml
+- [ ] No usage of go `map`
+- [ ] No usage of `time.Now()`
+- [ ] Used fixed point arithmetic and not float arithmetic
+- [ ] Avoid panicking in Begin/End block as much as possible
+- [ ] No unexpeted math Overflow
+- [ ] Used `sendCoin` and not `SendCoins`
+- [ ] Out-of-block compute is bounded
+- [ ] No serialized ID at the end of store keys
+
+Full security checklist [here](https://www.faulttolerant.xyz/2024-01-16-cosmos-security-1/)
+
+
 ---
 
 For Reviewer: