Update README.md

Author: Jason2866

examples/espidf-arduino-matter-light/README.md

@@ -63,5 +63,5 @@ In case it is necessary to change the Button Pin or the REG LED Pin, please use
 ## Using OpenThread with Matter
 
 This is possible with the ESP32-C6.
-It is neessasy to have a Thread Border Routed in the Matter Environment. Check you matter hardware provider.
+It is necessary to have a Thread Border Router in the Matter Environment. Check your Matter hardware provider.