fix the wrong URL link

Signed-off-by: Clyde Huang <chuang31@lenovo.com>
Change-Id: Idf447173d0b6f7cdc719b4850a15fcc88c5decdc
diff --git a/README.md b/README.md
index 0e5bb38..7421b48 100644
--- a/README.md
+++ b/README.md
@@ -31,4 +31,4 @@
 
 The virtual sensor configuration in entity manager follows a different format
 to the JSON in virtual_sensor_config.json (specified in
-[entity-manager/schemas/VirtualSensor.json](https://github.com/openbmc/entity-manager/blob/master/schemas/VirtualSensor.json)).
+[entity-manager/schemas/VirtualSensor.json](https://github.com/openbmc/entity-manager/blob/master/schemas/virtual_sensor.json)).