chore: add CITATION files

.rsync-exclude

@@ -8,3 +8,5 @@ README.md
 LICENSE
 Makefile
 build-and-release.sh
+CITATION.bib
+CITATION.cff

CITATION.bib

@@ -0,0 +1,7 @@
+@software{Grieser2023c,
+	title = {{PDF Annotation Extractor}},
+	author = {Christopher Grieser},
+	year = 2023,
+	keywords = {pdf, pdf annotation},
+	url = {https://github.com/chrisgrieser/pdf-annotation-extractor-alfred}
+}

CITATION.cff

@@ -0,0 +1,23 @@
+# vim: filetype=yaml
+# yaml-language-server: $schema=https://raw.githubusercontent.com/citation-file-format/citation-file-format/main/schema.json
+# DOCS https://github.com/citation-file-format/citation-file-format/blob/main/schema-guide.md
+#───────────────────────────────────────────────────────────────────────────────
+
+message: If you use this software, please cite it using these metadata.
+
+title: PDF Annotation Extractor
+abstract: Alfred Workflow to extract annotations from PDF files.
+type: software
+authors:
+  - family-names: Grieser
+    given-names: Christopher
+    orcid: "https://orcid.org/0000-0002-0767-9496"
+version: "8.12.2"
+date-released: "2023-12-04"
+repository-code: "https://github.com/chrisgrieser/pdf-annotation-extractor-alfred"
+keywords:
+  - pdf annotations
+  - pdfs
+  - data extraction
+cff-version: 1.2.0
+license: MIT

README.md

@@ -155,6 +155,19 @@ Then enter the next version number.
   annotation codes.
 - <a href="https://www.flaticon.com/authors/freepik">Icons created by Freepik/Flaticon.</a>
 
+## Recommended Citation
+
+Please cite this software project as (APA):
+
+```txt
+Grieser, C. (2023). PDF Annotation Extractor [Computer software]. 
+https://github.com/chrisgrieser/pdf-annotation-extractor-alfred
+```
+
+For other citation styles, use the following metadata:
+- [Citation File Format](./CITATION.cff)
+- [BibTeX](./CITATION.bib)
+
 ### About the Developer
 In my day job, I am a sociologist studying the social mechanisms underlying the
 digital economy. For my PhD project, I investigate the governance of the app

info.plist

@@ -436,18 +436,19 @@ Extract Annotations as Markdown, insert Pandoc Citations with correct page numbe
 
 ---
 
-## Created by
-[Chris Grieser](https://chris-grieser.de/)
+## Recommended Citation
+
+Please cite this software project as (APA):
+
+`Grieser, C. (2023). PDF Annotation Extractor [Computer software]. https://github.com/chrisgrieser/pdf-annotation-extractor-alfred`
 
-#### Profiles
-- [ResearchGate](https://www.researchgate.net/profile/Christopher-Grieser)
-- [Discord](https://discordapp.com/users/462774483044794368/)
-- [GitHub](https://github.com/chrisgrieser/)
-- [Twitter](https://twitter.com/pseudo_meta)
-- [LinkedIn](https://www.linkedin.com/in/christopher-grieser-ba693b17a/)
+For other citation styles, use the following metadata:
+- [Citation File Format](https://github.com/chrisgrieser/pdf-annotation-extractor-alfred/blob/main/CITATION.cff)
+- [BibTeX](https://github.com/chrisgrieser/pdf-annotation-extractor-alfred/blob/main/CITATION.bib)
 
-#### Buy me a Coffee
-[Ko-Fi](https://ko-fi.com/pseudometa)</string>
+
+## Created by
+[Chris Grieser](https://chris-grieser.de/)</string>
 	<key>uidata</key>
 	<dict>
 		<key>0C315F47-D751-4D59-8DFA-2CFC7BF581A2</key>