Update lint-source.yml

Author: sbryngelson

.github/workflows/lint-source.yml

@@ -16,4 +16,7 @@ jobs:
     - name: Lint the source code
       run:  fortitude check --ignore=E001,S001,S101,M011,F001,S041,T001 ./src/*/* || true >> lint.md
             cat lint.md
-            cat lint.md >> $GITHUB_STEP_SUMMARY
+            cat lint.md << EOF >> $GITHUB_STEP_SUMMARY
+
+    - name: Test job summary
+      run: echo -e "Test! \nTest line 2" >> $GITHUB_STEP_SUMMARY