Update CITATION.cff

CITATION.cff

@@ -2,7 +2,7 @@
 # Visit https://bit.ly/cffinit to generate yours today!
 
 cff-version: 1.2.0
-title: FletcherPenaltySolver.jl
+title: FletcherPenaltySolver.jl: Fletcher's penalty method for nonlinear optimization models
 message: >-
   If you use this software, please cite it using the
   metadata from this file.
@@ -12,11 +12,22 @@ authors:
     family-names: Migot
     email: tangi.migot@gmail.com
     orcid: 'https://orcid.org/0000-0001-7729-2513'
-  - given-names: Abel
-    family-names: Siqueira
-    orcid: 'https://orcid.org/0000-0003-4451-281X'
   - given-names: Dominique
     family-names: Orban
     orcid: 'https://orcid.org/0000-0002-8017-7687'
-doi: 10.5281/zenodo.7153564
+  - given-names: Abel
+    family-names: Soares Siqueira
+    orcid: 'https://orcid.org/0000-0003-4451-281X'
+  - given-names: contributors
+identifiers:
+  - description: Zenodo archive
+    type: doi
+    value: 10.5281/zenodo.7153564
 date-released: 2022-10-06
+keywords:
+  - Nonlinear Optimization
+  - Julia
+  - Nonlinear Programming
+license: MPL-2.0
+repository-code: >-
+  https://github.com/JuliaSmoothOptimizers/FletcherPenaltySolver.jl