fix sentence

Author: alexcoderabbitai

docs/guides/custom-reports.md

@@ -98,7 +98,7 @@ Contained within the `<pr_details>` tag.
 #### Summarized PR Details
 
 - `<pr_description>`: string - Contains the body of your pull request (aka the PR description at the top of the PR page).
-- `<file_changes_summary>`: string - Contains a file by file summary of the changes made in the PR in markdown format.  This summary is generated by CodeRabbit AI durring the PR review process. This includes several sections:
+- `<file_changes_summary>`: string - Contains a file by file summary of the changes made in the PR in markdown format.  This summary is generated by CodeRabbit AI durring the PR review process. This includes several sections for each file that was changed:
   - `filename`: string - The name of the file that was changed.
   - `AI-generated summary of changes`: markdown - An overall summary of the changes made in the file.
   - `Alterations to the declarations of exported or public entities`: markdown - A more specific breakdown of the changes made to the file such as exactly what was added, removed, or modified.