add number of citations badge

README.md

@@ -71,6 +71,7 @@ A list of badges, with their Markdown code, that can be included in a `README.md
   - [Open-Source](#open-source)
   - [Meta badges ?!](#meta-badges-)
   - [DOI and Zenodo](#doi-and-zenodo)
+  - [DOI Citations](#doi-citations)
   - [Discord](#discord)
   - [Jetbrains](#jetbrains)
   - [Say thanks](#say-thanks)
@@ -1197,6 +1198,16 @@ This is a badge to link to a [DOI](https://doi.org/):
 
 ----
 
+## DOI Citations
+This badge is showing the number of citations of a paper / DOI. Updated daily. See [HowTo](https://juleskreuer.eu/projekte/citation-badge/)
+
+[![Citation Badge](https://api.juleskreuer.eu/citation-badge.php?doi=10.1126/science.1058040)](https://juleskreuer.eu/projekte/citation-badge/)
+```markdown
+[![Citation Badge](https://api.juleskreuer.eu/citation-badge.php?doi=10.1126/science.1058040)](https://juleskreuer.eu/projekte/citation-badge/)
+```
+
+----
+
 ## Discord
 Discord Badges
 

README.rst

@@ -1271,6 +1271,22 @@ This is a badge to link to a [DOI](https://doi.org/):
 
 --------------
 
+DOI Citations
+--------------
+
+This badge is showing the number of citations of a paper / DOI. Updated daily. See [HowTo](https://juleskreuer.eu/projekte/citation-badge/)
+
+|DOI Citations|
+
+.. code:: rst
+
+   |DOI Citations|
+
+   .. |DOI Citations| image:: https://api.juleskreuer.eu/citation-badge.php?doi=10.1126/science.1058040
+      :target: https://juleskreuer.eu/projekte/citation-badge/
+
+--------------
+
 `Say thanks <https://github.com/kennethreitz/saythanks.io/>`__
 --------------------------------------------------------------
 A nice badge to give a link to `saythanks.io/to/kennethreitz <https://saythanks.io/to/kennethreitz>`__ (for example).