added right parentheses to all 4 lines, Listing: Scene with dielectric sphere

Author: dafhi

books/RayTracingInOneWeekend.html

@@ -2224,13 +2224,13 @@
 
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ C++
     world.add(make_shared<sphere>(
-        vec3(0,0,-1), 0.5, make_shared<lambertian>(vec3(0.1, 0.2, 0.5)));
+        vec3(0,0,-1), 0.5, make_shared<lambertian>(vec3(0.1, 0.2, 0.5))));
 
     world.add(make_shared<sphere>(
-        vec3(0,-100.5,-1), 100, make_shared<lambertian>(vec3(0.8, 0.8, 0.0)));
+        vec3(0,-100.5,-1), 100, make_shared<lambertian>(vec3(0.8, 0.8, 0.0))));
 
-    world.add(make_shared<sphere>(vec3(1,0,-1), 0.5, make_shared<metal>(vec3(0.8, 0.6, 0.2), 0.0));
-    world.add(make_shared<sphere>(vec3(-1,0,-1), 0.5, make_shared<dielectric>(1.5));
+    world.add(make_shared<sphere>(vec3(1,0,-1), 0.5, make_shared<metal>(vec3(0.8, 0.6, 0.2), 0.0)));
+    world.add(make_shared<sphere>(vec3(-1,0,-1), 0.5, make_shared<dielectric>(1.5)));
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     [Listing [scene-dielectric]: <kbd>[main.cc]</kbd> Scene with dielectric sphere]