docs: update README.md [skip ci]

README.md

@@ -1,4 +1,7 @@
 # MacNotesApp
+<!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
+[![All Contributors](https://img.shields.io/badge/all_contributors-1-orange.svg?style=flat-square)](#contributors-)
+<!-- ALL-CONTRIBUTORS-BADGE:END -->
 
 Work with Apple MacOS Notes.app from the command line. Also includes python interface for scripting Notes.app from your own python code.
 
@@ -203,3 +206,25 @@ print(note_names)
 * Currently, only notes in top-level folders are accessible to `macnotesapp` (#4)
 * Attachments are not currently handled and will be ignored (#15)
 * The title style is not correctly set (#13)
+
+## Contributors ✨
+
+Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/docs/en/emoji-key)):
+
+<!-- ALL-CONTRIBUTORS-LIST:START - Do not remove or modify this section -->
+<!-- prettier-ignore-start -->
+<!-- markdownlint-disable -->
+<table>
+  <tbody>
+    <tr>
+      <td align="center" valign="top" width="14.28%"><a href="https://github.com/chadmando"><img src="https://avatars.githubusercontent.com/u/20407042?v=4?s=100" width="100px;" alt="chadmando"/><br /><sub><b>chadmando</b></sub></a><br /><a href="#userTesting-chadmando" title="User Testing">📓</a></td>
+    </tr>
+  </tbody>
+</table>
+
+<!-- markdownlint-restore -->
+<!-- prettier-ignore-end -->
+
+<!-- ALL-CONTRIBUTORS-LIST:END -->
+
+This project follows the [all-contributors](https://github.com/all-contributors/all-contributors) specification. Contributions of any kind welcome!