feat(node): adding discord icon (#313)

diagrams/saas/chat.py

@@ -8,6 +8,11 @@ class _Chat(_Saas):
     _icon_dir = "resources/saas/chat"
 
 
+
+class Discord(_Chat):
+    _icon = "discord.png"
+
+
 class Mattermost(_Chat):
     _icon = "mattermost.png"
 

docs/nodes/saas.md

@@ -22,6 +22,7 @@ Node classes list of saas provider.
 
 ## saas.chat
 
+- **diagrams.saas.chat.Discord**
 - **diagrams.saas.chat.Mattermost**
 - **diagrams.saas.chat.RocketChat**
 - **diagrams.saas.chat.Slack**