add citation.bib

Christopher Doris · Christopher Doris · commit b4528b71e987 · 2022-03-30T13:30:01.000+01:00
diff --git a/CITATION.bib b/CITATION.bib
@@ -0,0 +1,6 @@
+@misc{PythonCall.jl,
+  author = {Rowley, Christopher},
+  title = {PythonCall.jl: Python and Julia in harmony},
+  year  = {2022},
+  url   = {https://github.com/cjdoris/PythonCall.jl},
+}
