Fix hosting forge name.

replace/trello.md

@@ -21,7 +21,7 @@ An Open-Source project management tool with rich features, simple and intuitive
 
 {% infobox %}
   - **Website**: [Taiga.io](https://taiga.io/)
-  - **Source code**: [Github](https://github.com/taigaio/taiga-back)
+  - **Source code**: [GitHub](https://github.com/taigaio/taiga-back)
   - **License**: [AGPLv3](https://github.com/taigaio/taiga-back/blob/master/LICENSE)
 {% endinfobox %}
 
@@ -31,7 +31,7 @@ An Open-Source, zero-knowledge, collaborative document editor, with a simple, ba
 
 {% infobox %}
   - **Website**: [Cryptpad.fr](https://cryptpad.fr)
-  - **Source code**: [Github](https://github.com/xwiki-labs/cryptpad/)
+  - **Source code**: [GitHub](https://github.com/xwiki-labs/cryptpad/)
   - **License**: [AGPLv3](https://github.com/xwiki-labs/cryptpad/blob/main/LICENSE)
 {% endinfobox %}