Update CITATION.cff

Author: JeffreySarnoff

CITATION.cff

@@ -1,16 +1,17 @@
 cff-version: 1.2.0
-message: "If you use this software, please cite it as below."
+message: If you use this software, please cite it using these metadata.
+title: DoubleFloats.jl
+abstract: A high-performance floating point type for accurate extended precision math.
 authors:
-  - given-names: "Jeffrey"
-    family-names: "Sarnoff"
+  - given-names: Jeffrey
+    family-names: Sarnoff
     email: "[email protected]"
     affiliation: "Julia Innovator"
     orcid: "https://orcid.org/0000-0001-9159-1667"
-title: "DoubleFloats.jl"
+  - name: "JuliaMath"
 version: 1.2.2
 type: software
 repository-code: "https://github.com/JuliaMath/DoubleFloats.jl"
 date-released: 2022-06-25
 url: "https://juliamath.github.io/DoubleFloats.jl/stable
-license: "MIT"
-license-url: "https://opensource.org/licenses/MIT"
+license: MIT