typo

Author: mcmchris

content/hardware/07.opta/opta-family/opta/tutorials/18.smart-compressor-app-note/content.md

@@ -70,7 +70,7 @@ The goal of this application note is to showcase the capabilities of Opta PLC in
 
 The electrical connections for this application are shown in the diagram below:
 
-![Instumentation diagram](assets/schematic-2.png)
+![Instrumentation diagram](assets/schematic-2.png)
 
 We are going to detail every connection below: