Fix typo in feature request issue template (#731)

.github/ISSUE_TEMPLATE/feature_request.md

@@ -13,7 +13,7 @@ A clear and concise description of what the problem is. Ex. I'm always frustrate
 **Describe the solution you'd like**
 A clear and concise description of what you want to happen.
 
-**Describe alternatives you've considered in any**
+**Describe alternatives you've considered if any**
 A clear and concise description of any alternative solutions or features you've considered.
 
 **Additional context**