feat: Initial description for Automatic Summary

docs/repositories-configure/integrations/github-integration.md

@@ -79,6 +79,32 @@ Adds AI-enhanced comments, providing insights and ready-to-commit AI-generated f
 
 ![AI-enhanced comment on GitHub](images/github-integration-ai-comment.png)
 
+### Automatic summaries
+
+Even when not written by developers, Codacy can provide an high-level summary for each pull request.
+Codacy generates an overview of the changes in the pull request so that any reviewer can understand it's intent and impact.
+
+![Automatic Summary on GitHub](images/github-integration-automatic-summary.png)
+
+!!! note
+    -   This feature is only available for GitHub.
+    -   This feature uses AWS Bedrock within Codacy's existing infrastructure. No information is shared with any other third party or used to train AI models.
+    -   Summaries are generated using the pull request title, branch name, commit messages, and changes diff.
+
+Enabling this feature requires a [Codacy configuration file](../codacy-configuration-file.md).
+Create a file named `codacy.yaml` in the root of your repository with the following content:
+
+```yaml
+reviews:
+  high_level_summary: true
+```
+
+You can also enable this feature across your organization by creating the above file in the root of a repository named `.codacy`. (This file will be used as the default configuration for all repositories in the organization, and overriden by the repository-specific configuration file.)
+
+Once enabled, summaries will be created when pull requests are opened and kept up-to-date to reflect any changes to the pull request.
+
+Pull requests opened by Bot account (such as Dependabot) are automatically ignored.
+
 ## See also
 
 -   [Integrating Codacy with your Git workflow](../../getting-started/integrating-codacy-with-your-git-workflow.md)