Update content/hardware/03.nano/boards/nano-r4/tutorials/04.external-interrupts/content.md

Co-authored-by: TaddyHC <94547080+TaddyHC@users.noreply.github.com>

Author: canchebagur

content/hardware/03.nano/boards/nano-r4/tutorials/04.external-interrupts/content.md

@@ -480,4 +480,4 @@ External interrupts on the Nano R4 board provide powerful event-driven capabilit
 
 Now that you understand interrupts on the Nano R4 board, consider building practical applications like tachometers, frequency counters, or power-efficient sensors that wake from sleep mode. Interrupts work with other Nano R4 features, such as the CAN bus for automotive projects or the DAC for triggered analog outputs.Check out the [Nano R4 User Manual](https://docs.arduino.cc/tutorials/nano-r4/user-manual/) to learn about its advanced features including the DAC, CAN bus, operational amplifiers, and HID capabilities.
 
-For more advanced projects and examples specifically designed for the Nano R4, visit the [Arduino Project Hub](https://projecthub.arduino.cc/). You might also want to explore the [Arduino Forum's Nano R4 section](https://forum.arduino.cc/c/official-hardware/nano-family/nano-r4/221) to connect with other users and share your experiences external interrupts.
+For more advanced projects and examples specifically designed for the Nano R4, visit the [Arduino Project Hub](https://projecthub.arduino.cc/). You might also want to explore the [Arduino Forum's Nano R4 section](https://forum.arduino.cc/c/official-hardware/nano-family/nano-r4/221) to connect with other users and share your experiences with external interrupts.