Fix broken links

Author: jasonrandrews

content/learning-paths/embedded-and-microcontrollers/raspberry-pi-smart-home/4-smart-home-assistant.md

@@ -35,7 +35,7 @@ In the previous section, you configured a LED on GPIO pin 17. The smart home ass
 The code uses gpiozero with lgpio backend for Raspberry Pi 5 compatibility. You can use compatible output devices such as LEDs, relays, or small loads connected to these GPIO pins to represent actual smart home devices. All pin assignments are optimized for the Raspberry Pi 5's GPIO layout.
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-![[Raspberry Pi 5 connected to a breadboard with LEDs, push button, and sensor module alt-text#center](hardware.jpeg "Setup that includes a blue LED (mapped to Living Room Light on GPIO 17), a red LED, push button, and a sensor module.")
+![Raspberry Pi 5 connected to a breadboard with LEDs, push button, and sensor module alt-text#center](hardware.jpeg "Setup that includes a blue LED (mapped to Living Room Light on GPIO 17), a red LED, push button, and a sensor module.")
 
 This setup illustrates a simulated smart home with controllable devices.
 

content/learning-paths/servers-and-cloud-computing/cca-device-attach/3.bounce_buffers.md

@@ -64,7 +64,7 @@ A bounce buffer preserves the confidentiality of other Realm data because only t
 
 ## Next steps
 
-In the next section, you'll test this by tracing SWIOTLB activity in [Exercise: observe bounce buffers in a Realm](./lab-observe-bounce-buffers.md). 
+In the next section, you'll test this by tracing SWIOTLB activity.