img display - retest

external/lab/maintenance-of-fridges/maintenance-of-fridges.md

@@ -21,7 +21,7 @@ The fridges and freezers are under constant temperature monitoring. In order to
 All users are in charge of the maintenance of the fridges and freezers at the following frequency:
 
 <div align="center">
-<img src="img/table1.png" width="600">
+<img src="img/Tab1.png" width="600">
 </div>
 
 ## How to disable a Rmoni sensor