Update changelog

CHANGELOG.md

@@ -14,6 +14,7 @@
 - Added ```/api/v1/blocks``` endpoint [ac9f1bc0](https://github.com/pixelfed/pixelfed/commit/ac9f1bc0)
 - Added ```/api/v1/accounts/{id}/block``` endpoint [c6b1ed97](https://github.com/pixelfed/pixelfed/commit/c6b1ed97)
 - Added ```/api/v1/accounts/{id}/unblock``` endpoint [35226c99](https://github.com/pixelfed/pixelfed/commit/35226c99)
+- Added ```/api/v1/custom_emojis``` endpoint [6e43431a](https://github.com/pixelfed/pixelfed/commit/6e43431a)
 
 ### Fixed
 - Update developer settings pages, fix vue bug [cd365ab3](https://github.com/pixelfed/pixelfed/commit/cd365ab3)