diff --git a/.all-contributorsrc b/.all-contributorsrc
index 99b1002ec..cca3b7277 100644
--- a/.all-contributorsrc
+++ b/.all-contributorsrc
@@ -608,6 +608,15 @@
         "bug",
         "maintenance"
       ]
+    },
+    {
+      "login": "jkuhl-uni",
+      "name": "Justus Kuhlmann",
+      "avatar_url": "https://avatars.githubusercontent.com/u/82444481?v=4",
+      "profile": "https://github.com/jkuhl-uni",
+      "contributions": [
+        "content"
+      ]
     }
   ],
   "contributorsPerLine": 7,
diff --git a/README.md b/README.md
index 259fa50db..ceabb32d5 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
 [![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.3608611.svg)](https://doi.org/10.5281/zenodo.3608611)
 [![made-with-datalad](https://www.datalad.org/badges/made_with.svg)](https://datalad.org)
 <!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
-[![All Contributors](https://img.shields.io/badge/all_contributors-57-orange.svg?style=flat-square)](#contributors-)
+[![All Contributors](https://img.shields.io/badge/all_contributors-58-orange.svg?style=flat-square)](#contributors-)
 <!-- ALL-CONTRIBUTORS-BADGE:END --> 
 
 # The DataLad handbook :orange_book:
@@ -69,7 +69,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/kyleam"><img src="https://avatars2.githubusercontent.com/u/1297788?v=4?s=100" width="100px;" alt="Kyle Meyer"/><br /><sub><b>Kyle Meyer</b></sub></a><br /><a href="https://github.com/datalad-handbook/book/issues?q=author%3Akyleam" title="Bug reports">🐛</a> <a href="https://github.com/datalad-handbook/book/pulls?q=is%3Apr+reviewed-by%3Akyleam" title="Reviewed Pull Requests">👀</a> <a href="#question-kyleam" title="Answering Questions">💬</a> <a href="#content-kyleam" title="Content">🖋</a> <a href="#ideas-kyleam" title="Ideas, Planning, & Feedback">🤔</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/marisaheckner"><img src="https://avatars2.githubusercontent.com/u/52243533?v=4?s=100" width="100px;" alt="Marisa Heckner"/><br /><sub><b>Marisa Heckner</b></sub></a><br /><a href="#ideas-marisaheckner" title="Ideas, Planning, & Feedback">🤔</a> <a href="#userTesting-marisaheckner" title="User Testing">📓</a> <a href="https://github.com/datalad-handbook/book/issues?q=author%3Amarisaheckner" title="Bug reports">🐛</a> <a href="#content-marisaheckner" title="Content">🖋</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/bpoldrack"><img src="https://avatars2.githubusercontent.com/u/10498301?v=4?s=100" width="100px;" alt="Benjamin Poldrack"/><br /><sub><b>Benjamin Poldrack</b></sub></a><br /><a href="#question-bpoldrack" title="Answering Questions">💬</a> <a href="#ideas-bpoldrack" title="Ideas, Planning, & Feedback">🤔</a> <a href="#example-bpoldrack" title="Examples">💡</a> <a href="#tutorial-bpoldrack" title="Tutorials">✅</a></td>
-      <td align="center" valign="top" width="14.28%"><a href="http://www.onerussian.com"><img src="https://avatars3.githubusercontent.com/u/39889?v=4?s=100" width="100px;" alt="Yaroslav Halchenko"/><br /><sub><b>Yaroslav Halchenko</b></sub></a><br /><a href="https://github.com/datalad-handbook/book/pulls?q=is%3Apr+reviewed-by%3Ayarikoptic" title="Reviewed Pull Requests">👀</a> <a href="#content-yarikoptic" title="Content">🖋</a> <a href="#ideas-yarikoptic" title="Ideas, Planning, & Feedback">🤔</a> <a href="https://github.com/datalad-handbook/book/issues?q=author%3Ayarikoptic" title="Bug reports">🐛</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="http://www.oneukrainian.com"><img src="https://avatars3.githubusercontent.com/u/39889?v=4?s=100" width="100px;" alt="Yaroslav Halchenko"/><br /><sub><b>Yaroslav Halchenko</b></sub></a><br /><a href="https://github.com/datalad-handbook/book/pulls?q=is%3Apr+reviewed-by%3Ayarikoptic" title="Reviewed Pull Requests">👀</a> <a href="#content-yarikoptic" title="Content">🖋</a> <a href="#ideas-yarikoptic" title="Ideas, Planning, & Feedback">🤔</a> <a href="https://github.com/datalad-handbook/book/issues?q=author%3Ayarikoptic" title="Bug reports">🐛</a></td>
     </tr>
     <tr>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/effigies"><img src="https://avatars0.githubusercontent.com/u/83442?v=4?s=100" width="100px;" alt="Chris Markiewicz"/><br /><sub><b>Chris Markiewicz</b></sub></a><br /><a href="https://github.com/datalad-handbook/book/issues?q=author%3Aeffigies" title="Bug reports">🐛</a></td>
@@ -136,6 +136,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
     </tr>
     <tr>
       <td align="center" valign="top" width="14.28%"><a href="http://dannygarside.co.uk"><img src="https://avatars.githubusercontent.com/u/3739866?v=4?s=100" width="100px;" alt="Danny Garside"/><br /><sub><b>Danny Garside</b></sub></a><br /><a href="https://github.com/datalad-handbook/book/issues?q=author%3Ada5nsy" title="Bug reports">🐛</a> <a href="#maintenance-da5nsy" title="Maintenance">🚧</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://github.com/jkuhl-uni"><img src="https://avatars.githubusercontent.com/u/82444481?v=4?s=100" width="100px;" alt="Justus Kuhlmann"/><br /><sub><b>Justus Kuhlmann</b></sub></a><br /><a href="#content-jkuhl-uni" title="Content">🖋</a></td>
     </tr>
   </tbody>
 </table>