Bump django from 5.1.7 to 5.1.14 in /example (#13)

Bumps [django](https://github.com/django/django) from 5.1.7 to 5.1.14.
- [Commits](https://github.com/django/django/compare/5.1.7...5.1.14)

---
updated-dependencies:
- dependency-name: django
  dependency-version: 5.1.14
  dependency-type: direct:production
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

README.md

@@ -164,3 +164,7 @@ on the detected signposting metadata and produces output similar to the one show
 ## License
 
 Licensed under the MIT License.
+
+## References
+
+You can cite this library using this DOI: [10.5281/zenodo.15008517](https://doi.org/10.5281/zenodo.15008517).

example/requirements.txt

@@ -2,7 +2,7 @@ asgiref==3.8.1
 beautifulsoup4==4.12.3
 certifi==2024.8.30
 charset-normalizer==3.4.0
-django==5.1.4
+django==5.1.14
 django-json-ld==0.0.5
 django-signposting==0.10.0
 httplink==0.2.0