Update issue_template.md

.github/issue_template.md

@@ -6,12 +6,24 @@
 ### Input
 <!-- Give a sample example -->
 
+```vhdl
+-- sample code here
+```
+
 ### Expected Behavior
 <!--- Tell us what should happen -->
 
+```vhdl
+-- sample code here
+```
+
 ### Actual Behavior
 <!--- Tell us what happens instead of the expected behavior -->
 
+```vhdl
+-- sample code here
+```
+
 <!--=== Report a bug (end) ===-->
 
 <!--=== Request a feature (start) ===-->
@@ -26,7 +38,15 @@
 #### Example Input:
 <!-- Give a sample input -->
 
+```vhdl
+-- sample code here
+```
+
 #### Example Output:
 <!-- Give an expected output -->
 
+```vhdl
+-- sample code here
+```
+
 <!--=== Request a feature (end) ===-->