adjust alt text

Author: GitHubber17

articles/synapse-analytics/synapse-notebook-activity.md

@@ -105,15 +105,15 @@ Go to **Pipeline runs** under the **Monitor** tab, you'll see the pipeline you h
 
 You can see the latest notebook run snapshot including both cells input and output by selecting the **open notebook** button. 
 
-![see-notebook-activity-history](./media/synapse-notebook-activity/input-output-open-notebook.png)
+![Screenshot that shows the notebook activity history.](./media/synapse-notebook-activity/input-output-open-notebook.png)
 
 Open notebook snapshot:
 
-![screenshot of open notebook snapshot](./media/synapse-notebook-activity/open-notebook-snapshot.png)
+![Screenshot that shows an open notebook snapshot.](./media/synapse-notebook-activity/open-notebook-snapshot.png)
 
 You can see the notebook activity input or output by selecting the **input** or **Output** button. If your pipeline failed with a user error, select the **output** to check the **result** field to see the detailed user error traceback.
 
-![screenshot of showing see output user error](./media/synapse-notebook-activity/notebook-output-user-error.png)
+![Screenshot that shows the user error details.](./media/synapse-notebook-activity/notebook-output-user-error.png)
 
 
 ## Synapse notebook activity definition