Merge branch 'master' into 'master'

Add Cryptpad as a potential alternative to Trello.

See merge request ReverseEagle/developers!2

replace/trello.md

@@ -23,4 +23,15 @@ An Open-Source project management tool with rich features, simple and intuitive
   - **Website**: [Taiga.io](https://taiga.io/)
   - **Source code**: [Github](https://github.com/taigaio/taiga-back)
   - **License**: [AGPLv3](https://github.com/taigaio/taiga-back/blob/master/LICENSE)
-{% endinfobox %}
\ No newline at end of file
+{% endinfobox %}
+
+## Cryptpad
+
+An Open-Source, zero-knowledge, collaborative document editor, with a simple, barebones, taskboard.
+
+{% infobox %}
+  - **Website**: [Cryptpad.fr](https://cryptpad.fr)
+  - **Source code**: [Github](https://github.com/xwiki-labs/cryptpad/)
+  - **License**: [AGPLv3](https://github.com/xwiki-labs/cryptpad/blob/main/LICENSE)
+{% endinfobox %}
+