update screenshot file path

Author: duongau

articles/frontdoor/troubleshoot-issues.md

@@ -39,15 +39,15 @@ The cause of this problem can be one of three things:
 * Send the request via Azure Front Door and see if you're getting any 503 responses. If not, the problem might not be a timeout issue. Contact support.
 * If requests going through Azure Front Door results in a 503 error response code, configure the **Origin response timeout (in seconds)** for the endpoint. You can extend the default timeout to up to 4 minutes (240 seconds). The setting can be configured by going to the *Endpoint manager* and selecting **Edit endpoint**.
 
-    :::image type="content" source=".\media\troubleshoot-route-issues\origin-response-timeout-1.png" alt-text="Screenshot of selecting edit endpoint from Endpoint manager.":::
+    :::image type="content" source="./media/troubleshoot-issues/origin-response-timeout-1.png" alt-text="Screenshot of selecting edit endpoint from Endpoint manager.":::
 
     Then select **Endpoint properties** to configure the **Origin response timeout**:
 
-    :::image type="content" source=".\media\troubleshoot-route-issues\origin-response-timeout-2.png" alt-text="Screenshot of select endpoint properties and Origin response timeout field." lightbox="..\media\troubleshoot-route-issues\origin-response-timeout-2-expanded.png":::
+    :::image type="content" source="./media/troubleshoot-issues/origin-response-timeout-2.png" alt-text="Screenshot of select endpoint properties and Origin response timeout field." lightbox="./media/troubleshoot-issues/origin-response-timeout-2-expanded.png":::
 
 * If the timeout doesn’t resolve the issue, use a tool like Fiddler or your browser's developer tool to check if the client is sending byte range requests with Accept-Encoding headers, leading to the origin responding with different content lengths. If yes, then you can either disable compression on the Origin/Azure Front Door or create a Rules Set rule to remove `accept-encoding` from the request for byte range requests.
 
-    :::image type="content" source=".\media\troubleshoot-route-issues\remove-encoding-rule.png" alt-text="Screenshot of accept-encoding rule in a Rule Set.":::
+    :::image type="content" source="./media/troubleshoot-issues/remove-encoding-rule.png" alt-text="Screenshot of accept-encoding rule in a Rule Set.":::
 
 ## Requests sent to the custom domain return a 400 status code