Update the exception report to make it work better with the new bug template (#2917)

Author: daxian-dbw

.github/ISSUE_TEMPLATE/Bug_Report.yaml

@@ -30,6 +30,8 @@ body:
         Instead, please scroll up to above the exception report, and take a screenshot of the console state right before the exception happened.
         Also, please keep your terminal window size unchanged when taking screenshot.
       - If no exception was involved, please upload images or animations that you think may be helpful, or put "N/A" below.
+  validations:
+    required: true
 - type: textarea
   attributes:
     label: Environment data

PSReadLine/PSReadLineResources.Designer.cs

@@ -412,15 +412,14 @@ OS: {2}
 BufferWidth: {3}
 BufferHeight: {4}
 
-Last {5} Keys
-```
+Last {5} Keys:
+
 {6}
-```
 
 ### Exception
-```
+
 {7}
-```
+
 </value>
   </data>
   <data name="NextLineDescription" xml:space="preserve">
@@ -713,7 +712,7 @@ If there are other parse errors, unresolved commands, or incorrect parameters, s
     <value>Invokes TabCompletePrevious after doing some vi-specific clean up.</value>
   </data>
   <data name="ViEditVisuallyDescription" xml:space="preserve">
-    <value>Invokes the console compatible editor specified by $env:VISUAL or $env:$EDITOR on the current command line.</value>
+    <value>Invokes the console compatible editor specified by $env:VISUAL or $env:EDITOR on the current command line.</value>
   </data>
   <data name="ViAppendLineDescription" xml:space="preserve">
     <value>Appends a new multi-line edit mode line to the current line.</value>