Add mentions of the Discord server

.github/ISSUE_TEMPLATE/config.yml

@@ -1,5 +1,8 @@
 blank_issues_enabled: false
 contact_links:
+  - name: 💬 Discord server
+    url: https://discord.gg/2SUWKFnHSm
+    about: Chat with the project community.
   - name: 📖 Wiki
     url: https://github.com/Tyrrrz/DiscordChatExporter/wiki
     about: Find usage guides and frequently asked questions.

Readme.md

@@ -4,6 +4,7 @@
 [![Coverage](https://codecov.io/gh/Tyrrrz/DiscordChatExporter/branch/master/graph/badge.svg)](https://codecov.io/gh/Tyrrrz/DiscordChatExporter)
 [![Release](https://img.shields.io/github/release/Tyrrrz/DiscordChatExporter.svg)](https://github.com/Tyrrrz/DiscordChatExporter/releases)
 [![Downloads](https://img.shields.io/github/downloads/Tyrrrz/DiscordChatExporter/total.svg)](https://github.com/Tyrrrz/DiscordChatExporter/releases)
+[![Discord](https://img.shields.io/discord/869237470565392384?label=discord)](https://discord.gg/2SUWKFnHSm)
 [![Donate](https://img.shields.io/badge/donate-$$$-purple.svg)](https://tyrrrz.me/donate)
 
 ✅ **Project status: active**.
@@ -13,6 +14,8 @@ It works with direct messages, group messages, and server channels, and supports
 
 ❓ **If you have questions or issues, please refer to the [wiki](https://github.com/Tyrrrz/DiscordChatExporter/wiki)**.
 
+💬 **If you want to chat, join my [Discord server](https://discord.gg/2SUWKFnHSm)**.
+
 ## Download
 
 This application comes in two flavors: graphical user interface (**GUI**) and command line interface (**CLI**).