add sast notes to changelog (#114)

* add sast notes to changelog

* fix update

Author: alexcoderabbitai

docs/changelog.md

@@ -5,6 +5,15 @@ description: The latest updates and changes to CodeRabbit.
 sidebar_position: 9
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+##  Security and SAST Remediation Improvements
+#### Oct 22, 2024
+- Enabling comprehensive security analysis directly from context within GitHub Checks.
+- CodeRabbit now seamlessly integrates with top SAST tools that create github check annotation comments like Codacy, SonarCloud, Code Climate, GitHub Advanced Security, Palo Alto Prisma Cloud, and more!
+- We have added a [YouTube Tutorial](https://www.youtube.com/watch?v=tfy3FdsoUtU) for a step-by-step guide on using CodeRabbit with Codacy and SonarCloud during pull requests.
+- Improved the [Semgrep Documentation](https://docs.coderabbit.ai/tools/semgrep).
+- CodeRabbit now automatically detects Semgrep rulesets from default `semgrep.yml` or `semgrep.config.yml` files, eliminating the need for manual configuration.
+
+
 ##  Related PRs and Label suggestions
 #### Sep 9, 2024
 - Possibly related PRs: The walkthrough comment now includes a list of potentially related PRs to help you recall the past context.