Spicy Grilled Okra With Lemon Yogurt Dipping Sauce

2/3 c. plain Greek yogurt1 T. chopped fresh mint2 T. fresh lemon juice1 T. minced garlicKosher salt/black pepper1 t. ground coriander½ t. curry powder1 lb. small fresh okra pods, trimmedVegetable oil8 Wooden skewers (soaked in water for 30 minutes) or…