Update readme and fix some minor style issues.

README

@@ -3,3 +3,4 @@ Project to learn the vulkan API.
 Checkpoints:
 `42410890541d4cc67934ad383e49cfebab219d40`: first triangle rendering complete
 `2ee55ac3adae04d8a773a16220dc8f657f093ed8`: drawing a square with index buffers
+`ea5e4c9e6fcc910dab8d20cb43922387fe14944d`: rotating square with UBOs

src/main.c

@@ -1130,7 +1130,7 @@ void create_descriptor_sets(ApplicationState* state) {
 
         vkUpdateDescriptorSets(state->device, 1, &descriptor_write, 0, NULL);
     }
-    
+
     printf("created descriptor sets\n");
 }
 
@@ -1254,7 +1254,6 @@ void init_vulkan(ApplicationState* state) {
     create_index_buffer(state);
     create_uniform_buffers(state);
     create_descriptor_pool(state);
-    printf("creating descriptor sets\n");
     create_descriptor_sets(state);
     create_command_buffer(state);
     create_sync_objects(state);
@@ -1352,7 +1351,7 @@ void terminate(ApplicationState* state) {
         vkDestroyFence(state->device, state->in_flight_frames[i], NULL);
         vkDestroySemaphore(state->device, state->image_available_semaph[i], NULL);
         vkDestroySemaphore(state->device, state->render_finished_sempah[i], NULL);
-    
+
         vkDestroyBuffer(state->device, state->uniform_buffers[i], NULL);
         vkFreeMemory(state->device, state->uniform_buffer_memory[i], NULL);
     }