Docs: Fix name of SH class.

docs/list.js

@@ -280,7 +280,7 @@ var list = {
 				"Ray": "api/en/math/Ray",
 				"Sphere": "api/en/math/Sphere",
 				"Spherical": "api/en/math/Spherical",
-				"SphericalHarmonics": "api/en/math/SphericalHarmonics",
+				"SphericalHarmonics3": "api/en/math/SphericalHarmonics3",
 				"Triangle": "api/en/math/Triangle",
 				"Vector2": "api/en/math/Vector2",
 				"Vector3": "api/en/math/Vector3",
@@ -738,7 +738,7 @@ var list = {
 				"Ray": "api/zh/math/Ray",
 				"Sphere": "api/zh/math/Sphere",
 				"Spherical": "api/zh/math/Spherical",
-				"SphericalHarmonics": "api/zh/math/SphericalHarmonics",
+				"SphericalHarmonics3": "api/zh/math/SphericalHarmonics3",
 				"Triangle": "api/zh/math/Triangle",
 				"Vector2": "api/zh/math/Vector2",
 				"Vector3": "api/zh/math/Vector3",