fix stacktrace example readme

Author: DannyBen

examples/stacktrace/README.md

@@ -13,8 +13,7 @@ $ bashly generate
 $ bashly generate
 ```
 
-<!-- include: src/initialize.sh -->
-<!-- include: src/root_command.sh -->
+<!-- include: src/initialize.sh src/root_command.sh -->
 
 -----
 
@@ -56,6 +55,14 @@ set -o errtrace
 
 ````
 
+## `src/root_command.sh`
+
+````bash
+## trigger an error by calling a function that does not exist
+no_such_command
+
+````
+
 
 ## Output