Fix file tree example

Signed-off-by: Sanjula Ganepola <Sanjula.Ganepola@ibm.com>

Author: SanjulaGanepola

src/content/docs/developing/testing/configuring.mdx

@@ -54,7 +54,7 @@ Shown below is an example of a project structure with the `testing.json` file at
     - UTILSB.RPGLE
   - QTESTSRC.FILE
     - EMPLOYEE_T.RPGLE
-  - UTILTST.FILE
+  - UTILTESTS.FILE
     - TESTING.JSON                    **Source file level configuration**
     - UTILSA_T.RPGLE
     - UTILSB_T.RPGLE