Add troubleshooting info in both README files

Author: blshukla

examples/cec-interface/brightscript/README.md

@@ -12,5 +12,18 @@ This example demonstrates how to send CEC (Consumer Electronics Control) command
 2. Reboot the player.
 3. The script will automatically run and send the CEC commands as described.
 
+## Troubleshooting
+
+A common error that you may see when using CEC is the 133 error which indicates "destination address not acknowledged" or in plainer English "the device you are trying to talk to is not listening":
+```
+{  238.703} [INFO]   [source file:///sd:/index.html:52]: Error while sending CEC command: {"error":133}
+```
+
+To resolve this:
+- Ensure that your BrightSign device is connected to a CEC-compatible display via HDMI.
+- Make sure that CEC is enabled on your display device.
+- Try replacing the HDMI cable if CEC commands are still not being received.
+- Try running your code on a different display device to rule out compatibility issues.
+
 ## Reference
 - [BrightSign roCecInterface documentation](https://docs.brightsign.biz/developers/rocecinterface)

examples/cec-interface/javascript/README.md

@@ -12,5 +12,18 @@ This example demonstrates how to send and receive CEC (Consumer Electronics Cont
 2. Reboot the player.
 3. The script will automatically run and send the CEC commands as described.
 
+## Troubleshooting
+
+A common error that you may see when using CEC is the 133 error which indicates "destination address not acknowledged" or in plainer English "the device you are trying to talk to is not listening":
+```
+{  238.703} [INFO]   [source file:///sd:/index.html:52]: Error while sending CEC command: {"error":133}
+```
+
+To resolve this:
+- Ensure that your BrightSign device is connected to a CEC-compatible display via HDMI.
+- Make sure that CEC is enabled on your display device.
+- Try replacing the HDMI cable if CEC commands are still not being received.
+- Try running your code on a different display device to rule out compatibility issues.
+
 ## Reference
 - [BrightSign @brightsign/cec documentation](https://docs.brightsign.biz/developers/cec)