add issue templates & update discord invite link

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -0,0 +1,39 @@
+name: Bug Report
+description: File a bug report
+labels: ["bug"]
+
+body:
+  - type: textarea
+    id: what-happened
+    attributes:
+      label: What happened?
+      description: Also tell us, what did you expect to happen?
+      placeholder: Tell us what you see!
+    validations:
+      required: true
+
+  - type: input
+    id: version-version
+    attributes:
+      label: Mod Version
+    validations:
+      required: true
+
+  - type: dropdown
+    id: minecraft-version
+    attributes:
+      label: Minecraft Version
+      multiple: false
+      options:
+        - "1.20"
+        - "1.19"
+        - "1.18"
+    validations:
+      required: true
+
+  - type: textarea
+    id: logs
+    attributes:
+      label: Relevant log output
+      description: Please copy and paste any relevant log output. This will be automatically formatted into code, so no need for backticks.
+      render: Shell

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,6 @@
+blank_issues_enabled: false
+
+contact_links:
+  - name: Discord
+    url: https://discord.gg/JmMf7CEKsx
+    about: Any questions? Join the discord server!

.github/ISSUE_TEMPLATE/feature_request.yml

@@ -0,0 +1,20 @@
+name: Feature Request
+description: Suggest a feature
+labels: ["enhancement", "feature", "feature-request"]
+
+body:
+  - type: textarea
+    id: idea
+    attributes:
+      label: Describe the feature you have in mind.
+      placeholder: So I was think about...
+    validations:
+      required: true
+
+  - type: textarea
+    id: problem-solving
+    attributes:
+      label: Does this solve a particular problem?
+      placeholder: Yes, it balances...
+    validations:
+      required: false

README.md

@@ -4,7 +4,7 @@
 
 <p align="center">
 
-  <a href="https://discord.gg/sA858vGruu">
+  <a href="https://discord.gg/JmMf7CEKsx">
     <img alt="Discord" src="https://img.shields.io/discord/780149719611473930?color=ff8c5a&label=%20&labelColor=525474&logoColor=white&style=for-the-badge&logo=discord">
   </a>