Remove markdown from titles and other minor cleanup (#2394)

* Update .github/ISSUE_TEMPLATE/what_people_are_saying.yml 
Markdown in titles is not rendered. --  Remove markdown from titles and other minor cleanup

Author: stumbo

.github/ISSUE_TEMPLATE/primer.yml

@@ -1,6 +1,6 @@
-name: Report an issue with the **Medley Interlisp for the Newcomer** primer
+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
+title: "[Primer] <short title here>"
 labels: 
   - primer
   - documentation

.github/ISSUE_TEMPLATE/what_people_are_saying.yml

@@ -1,6 +1,6 @@
-name: "New entry for **What People Are Saying**"
-description: "Suggest a new entry for the **What People are Saying** page"
-title: "What People are Saying suggestion"
+name: New "What People Are Saying" entry
+description: 'Suggest a new entry for the "What People Are Saying" page'
+title: "What People Are Saying suggestion"
 body:
   - type: dropdown
     id: contentType
@@ -24,7 +24,7 @@ body:
     id: additionalInformation
     attributes:
       label:  Additional information
-      description: "Use this space to supply any addiitonal information on the suggested item."
+      description: "Use this space to supply any additional information on the suggested item."
     validations:
       required: false
   - type: markdown