fix: CITATION.cff format

CITATION.cff

@@ -0,0 +1,46 @@
+cff-version: 1.2.0
+title: zmap
+message: 'If you use this software, please cite it as below.'
+type: software
+authors:
+  - family-names: Izhikevich
+    given-names: Liz
+  - family-names: Akiwate
+    given-names: Gutam
+  - family-names: Berger
+    given-names: Briana
+  - family-names: Drakontaidis
+    given-names: Spencer
+  - family-names: Ascheman
+    given-names: Anna
+  - family-names: Pearce
+    given-names: Paul
+  - family-names: Adrian
+    given-names: David
+  - family-names: Durumeric
+    given-names: Zakir
+    orcid: 'https://orcid.org/0000-0002-9647-4192'
+url: 'https://github.com/zmap/zdns'
+date-released: '2016-07-10'
+preferred-citation:
+  type: conference-paper
+  authors:
+    - family-names: Izhikevich
+      given-names: Liz
+    - family-names: Akiwate
+      given-names: Gutam
+    - family-names: Berger
+      given-names: Briana
+    - family-names: Drakontaidis
+      given-names: Spencer
+    - family-names: Ascheman
+      given-names: Anna
+    - family-names: Pearce
+      given-names: Paul
+    - family-names: Adrian
+      given-names: David
+    - family-names: Durumeric
+      given-names: Zakir
+  collection-title: ACM Internet Measurement Conference
+  title: 'ZDNS: A Fast DNS Toolkit for Internet Measurement'
+  year: 2022