Salmon with Chermoula Sauce and Couscous

Name: Salmon with Chermoula Sauce and Couscous
Ingredients: 1/2 cup packed fresh cilantro; 1/4 cup packed fresh parsley leaves, plus 2 tablespoons chopped; 2 cloves garlic; 2 teaspoons ground cumin; 2 teaspoons ground coriander; Finely grated zest and juice of 1 lemon, plus wedges for serving; 6 tablespoons extra-virgin olive oil; Kosher salt and freshly ground pepper; 1/2 small zucchini, finely chopped; 2 teaspoons spicy harissa sauce (such as Mina); 1 cup couscous; 4 5-ounce salmon fillets (about 1 inch thick)