Shrimp in Coconut Milk

Name: Shrimp in Coconut Milk
Ingredients: 1/4 cup cooking oil; 2 onions, chopped fine; 4 cloves garlic, minced; 2 tablespoons minced fresh ginger; 2 tablespoons ground coriander; 1/4 teaspoon ground cumin; 1/4 teaspoon cinnamon; 1/8 teaspoon cayenne; 1/8 teaspoon turmeric; 1 cup drained whole canned tomatoes, cut into 1/2-inch pieces (from a 15-ounce can); 2 1/2 cups canned unsweetened coconut milk (from two 15-ounce cans); 1/2 cup water; 1 1/4 teaspoons salt; 1 1/2 pounds large shrimp, shelled; 3/4 cup chopped cilantro; Lime wedges, for serving