Found minor misstake on example code

[ashiba]

I found minor misstake on examples/chapter02/checkDeviceInfor.cu.
The following code is written on line 40-42.

printf("  Total amount of global memory:                 %.2f MBytes (%llu "
           "bytes)\n", (float)deviceProp.totalGlobalMem / pow(1024.0, 3),
           (unsigned long long)deviceProp.totalGlobalMem);

https://github.com/deeperlearning/professional-cuda-c-programming/blob/master/examples/chapter02/checkDeviceInfor.cu#L40

Shouldn't %.2f MBytes be %.2f GBytes？
The reason is that this value is obtained by dividing deviceProp.totalGlobalMem by pow(1024.0, 3).

[ashiba]

I submitted the issue because I thought this repository is official, but maybe it's not?