Fix syntax errors

.github/ISSUE_TEMPLATE/primer.yml

@@ -1,8 +1,9 @@
 name: Report an issue with the **Medley Interlisp for the Newcomer** primer
 description: Use this template to report issues or make suggestions 
 title: Title of your issue
-assignees: ''
-labels: primer, documentation
+labels: 
+  - primer
+  - documentation
 body:
   - type: dropdown
     id: problemType
@@ -15,8 +16,8 @@ body:
         - Outdated information
         - Broken link
         - Typo / Grammar
-      validations:
-        required: true
+    validations:
+      required: true
   - type: dropdown
     id: location
     attributes:
@@ -39,8 +40,8 @@ body:
         - Making a Graph with Grapher
         - Additional Resources
         - General Feedback (not specific to a section)
-      validations:
-        required: true  
+    validations:
+      required: true  
   - type: input
     id: issueLocationDetails
     attributes: