diff --git a/.all-contributorsrc b/.all-contributorsrc
index e21466c43a1c..b758be965f26 100644
--- a/.all-contributorsrc
+++ b/.all-contributorsrc
@@ -2832,7 +2832,8 @@
       "avatar_url": "https://avatars.githubusercontent.com/u/7249450?v=4",
       "profile": "https://github.com/ylcn91",
       "contributions": [
-        "code"
+        "code",
+        "doc"
       ]
     },
     {
diff --git a/README.md b/README.md
index 43445093ef50..99e39ef2f144 100644
--- a/README.md
+++ b/README.md
@@ -474,7 +474,7 @@ This project is licensed under the terms of the MIT license.
     <tr>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/jppf22"><img src="https://avatars.githubusercontent.com/u/104360594?v=4?s=100" width="100px;" alt="João Fernandes"/><br /><sub><b>João Fernandes</b></sub></a><br /><a href="#translation-jppf22" title="Translation">🌍</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/HongGeonUi"><img src="https://avatars.githubusercontent.com/u/89684956?v=4?s=100" width="100px;" alt="Hong Geon-ui"/><br /><sub><b>Hong Geon-ui</b></sub></a><br /><a href="#translation-HongGeonUi" title="Translation">🌍</a></td>
-      <td align="center" valign="top" width="14.28%"><a href="https://github.com/ylcn91"><img src="https://avatars.githubusercontent.com/u/7249450?v=4?s=100" width="100px;" alt="Doksanbir"/><br /><sub><b>Doksanbir</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ylcn91" title="Code">💻</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://github.com/ylcn91"><img src="https://avatars.githubusercontent.com/u/7249450?v=4?s=100" width="100px;" alt="Doksanbir"/><br /><sub><b>Doksanbir</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ylcn91" title="Code">💻</a> <a href="https://github.com/iluwatar/java-design-patterns/commits?author=ylcn91" title="Documentation">📖</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/Chant3ll3"><img src="https://avatars.githubusercontent.com/u/141697333?v=4?s=100" width="100px;" alt="Chant3ll3"/><br /><sub><b>Chant3ll3</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Chant3ll3" title="Documentation">📖</a> <a href="#translation-Chant3ll3" title="Translation">🌍</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://hwan33.tistory.com/"><img src="https://avatars.githubusercontent.com/u/67625677?v=4?s=100" width="100px;" alt="YongHwan Kwon"/><br /><sub><b>YongHwan Kwon</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=hwan33" title="Code">💻</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/takikuba"><img src="https://avatars.githubusercontent.com/u/58841343?v=4?s=100" width="100px;" alt="Jakub Klimek"/><br /><sub><b>Jakub Klimek</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=takikuba" title="Code">💻</a></td>