Add missing descriptions

.github/ISSUE_TEMPLATE/bug_report.yaml

@@ -48,7 +48,7 @@ body:
   - type: dropdown
     attributes:
       label: Platform
-      description:
+      description: Server software - choose your proxy software if you have multiple servers
       options:
         - Spigot
         - BungeeCord
@@ -57,7 +57,7 @@ body:
   - type: checkboxes
     attributes:
       label: Relevance
-      description:
+      description: Check list for previous tickets
       options:
         - label: I tried the latest build
           required: true