discord: added standalone with guide to disable automatic checks

wiki/communication.md

@@ -9,7 +9,7 @@ This article bundles all of them.
 This section lists some of the most common Voice over IP (VoIP) platforms.
 
 - [Matrix](/wiki/matrix.md) is a decentralized and open-source social platform.
-- [Discord](https://discord.com/) is a widely used, proprietary social platform.
+- [Discord](/wiki/discord.md) is a widely used, proprietary social platform.
 
 ### Soundboards
 

wiki/discord.md

@@ -0,0 +1,14 @@
+# Discord
+
+[Discord](https://discord.com/) is an social platform that combines voice and video conferences as
+well as instant messaging chats.
+
+## Usage
+
+This section addresses various features of Discord.
+
+### Disable Automatic Update Checks
+
+By default Discord performs an automatic check to see if it is up to date.
+On [Linux](/wiki/linux.md)-based systems it can be disabled by adding `"SKIP_HOST_UPDATE": true` to
+the `~/.config/discord/settings.json` file.