Merge pull request #243 from chrislit/0.4.1

fixed image url

Author: chrislit

README.rst

@@ -107,7 +107,7 @@ Abydos
     :target: https://libraries.io/pypi/abydos
     :alt: Libraries.io SourceRank
 
-.. |zenodo| image:: https://zenodo.org/badge/DOI/10.5281/zenodo.3600548
+.. |zenodo| image:: https://zenodo.org/badge/DOI/10.5281/zenodo.3600548.svg
     :target: https://doi.org/10.5281/zenodo.3600548
     :alt: Zenodo