[Enhancement] Create CITATION.cff and Validation (#1)

.github/workflows/cffconvert.yml

@@ -0,0 +1,24 @@
+name: cffconvert
+
+on:
+  push:
+    paths:
+      - CITATION.cff
+
+permissions:
+  contents: read
+
+jobs:
+  validation:
+    name: validate
+    runs-on: ubuntu-latest
+    steps:
+      - name: checkout
+        uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b
+        with:
+          persist-credentials: false
+
+      - name: cffconvert
+        uses: citation-file-format/cffconvert-github-action@4cf11baa70a673bfdf9dad0acc7ee33b3f4b6084
+        with:
+          args: "--validate"

CITATION.cff

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+# Parser settings.
+cff-version: 1.2.0
+message: Please cite this software using these meta data.
+
+# Version information.
+date-released: 2022-09-21
+version: 3.3.2
+
+# Project information.
+abstract: ne, the nice editor
+authors:
+  - alias: vigna
+    family-names: Vigna
+    given-names: Sebastiano
+  - alias: utoddl
+    family-names: Lewis
+    given-names: Todd M.
+  - name: The ne Community
+license: GPL-3.0+
+repository-code: https://github.com/vigna/ne
+title: ne
+url: http://ne.di.unimi.it/