Revert "Update a path in haproxy guide" (pingcap#10204)

TomShawn · web-flow · commit bef8ff080769 · 2022-08-27T11:16:21.000+08:00
diff --git a/best-practices/haproxy-best-practices.md b/best-practices/haproxy-best-practices.md
@@ -109,7 +109,7 @@ You can easily use HAProxy to configure and set up a load-balanced database envi
     {{< copyable "shell-regular" >}}
 
     ```bash
-    echo 'export PATH=/app/haproxy:$PATH' >> /etc/profile
+    echo 'export PATH=/app/haproxy/bin:$PATH' >> /etc/profile
     ```
 
 5. Check whether the installation is successful:
