Update CITATION

SinaMostafanejad · web-flow · commit 53e3883f3267 · 2021-07-22T08:57:36.000-04:00
diff --git a/CITATION b/CITATION
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 Mohammad Mostafanejad, Fundamentals of Heterogeneous Parallel Programming with CUDA C/C++,
-2021, (The Molecular Sciences Software Institute, Blacksburg, VA 24060).
+2021, (The Molecular Sciences Software Institute, Blacksburg, VA 24060), DOI:10.5281/zenodo.5120242.

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`1`	`1`	`Mohammad Mostafanejad, Fundamentals of Heterogeneous Parallel Programming with CUDA C/C++,`
`2`		`-2021, (The Molecular Sciences Software Institute, Blacksburg, VA 24060).`
	`2`	`+2021, (The Molecular Sciences Software Institute, Blacksburg, VA 24060), DOI:10.5281/zenodo.5120242.`