Update 'README.md'

README.md

@@ -89,7 +89,7 @@ sudo systemctl enable opencanary && sudo systemctl start opencanary
 ```bash
 wget https://download.csec.ba/tinkerboard/opencanary.sh
 #Make it executable
-sudo chmod +x opencanary.conf
+sudo chmod +x opencanary.sh
 #Execute script
 sudo ./opencanary.sh
 ```