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diff --git a/course1/.DS_Store b/course1/.DS_Store
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diff --git a/course1/week1-ungraded-lab/.DS_Store b/course1/week1-ungraded-lab/.DS_Store
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diff --git a/course4/.DS_Store b/course4/.DS_Store
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diff --git a/course4/week2-ungraded-labs/C4_W2_Lab_1_FastAPI_Docker/no-batch/.DS_Store b/course4/week2-ungraded-labs/C4_W2_Lab_1_FastAPI_Docker/no-batch/.DS_Store
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diff --git a/course4/week3-ungraded-labs/C4_W3_Lab_4_Github_Actions/.DS_Store b/course4/week3-ungraded-labs/C4_W3_Lab_4_Github_Actions/.DS_Store
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diff --git a/course4/week3-ungraded-labs/C4_W3_Lab_4_Github_Actions/app/main.py b/course4/week3-ungraded-labs/C4_W3_Lab_4_Github_Actions/app/main.py
index 2f94e9ff2..84aceb84b 100644
--- a/course4/week3-ungraded-labs/C4_W3_Lab_4_Github_Actions/app/main.py
+++ b/course4/week3-ungraded-labs/C4_W3_Lab_4_Github_Actions/app/main.py
@@ -22,4 +22,10 @@ def predict(wine: Wine):
     batches = wine.batches
     np_batches = np.array(batches)
     pred = clf.predict(np_batches).tolist()
-    return {"Prediction": pred}
\ No newline at end of file
+    return {"Prediction": pred}
+'''
+To run the unit test using the CI/CD pipeline you need to push some changes to the remote repository. To do this, add a comment somewhere in the main.py file and save the changes.
+'''
+'''
+To run the unit test using the CI/CD pipeline you need to push some changes to the remote repository. To do this, add a comment somewhere in the main.py file and save the changes.
+'''
\ No newline at end of file