Update ota demo instructions
@@ -116,7 +116,7 @@ Note: A pre-signed GET URL is required for all HTTP S3 demos. For upload demos,
### Prerequisites
<ol>
<li> To perform a successful OTA update you would need to complete the prerequisites mentioned here: https://docs.aws.amazon.com/freertos/latest/userguide/ota-prereqs.html </li>
- <li> A Code-Signing profile can be created using: https://docs.aws.amazon.com/freertos/latest/userguide/ota-code-sign-cert-esp.html </li>
+ <li> A code signing certificate is required to authenticate the update. A code signing certificate based on the SHA-256 ECDSA algorithm will work with the current demos. An example of how to generate this kind of certificate can be found here: https://docs.aws.amazon.com/freertos/latest/userguide/ota-code-sign-cert-esp.html </li>
</ol>
### Configuration
