Update troubleshooting.md

Gadgetoid · Gadgetoid · commit 3491abb7e434 · 2015-10-20T12:12:13.000+01:00
diff --git a/hardware/display/troubleshooting.md b/hardware/display/troubleshooting.md
@@ -31,7 +31,7 @@ sudo reboot
 If you want to make sure your Pi has detected your touchscreen, try running:
 
 ```bash
-dmesg | grepo -i ft5406
+dmesg | grep -i ft5406
 ```
 
 You should see a couple of lines that look like this:
