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

.bumpversion.cfg

@@ -16,6 +16,10 @@ search = **unreleased**
 replace = **unreleased**
 	**v{new_version}**
 
+[bumpversion:file:CITATION.cff]
+search = version: {current_version}
+replace = version: {new_version}
+
 [bumpversion:part:release]
 optional_value = gamma
 values = 

.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

@@ -0,0 +1,19 @@
+# Parser information.
+cff-version: 1.2.0
+message: Please cite this software using these meta data.
+
+# Version information.
+date-released: 2020-10-07
+version: 1.0.2-dev
+
+# Project information.
+abstract: Version-bump your software with a single command!
+authors:
+  - alias: c4urself
+    family-names: Verkerk
+    given-names: Christian
+  - name: The bump2version Community
+license: MIT
+repository-code: https://github.com/c4urself/bump2version
+title: bump2version
+url: https://pypi.python.org/pypi/bump2version