diff --git a/scripts/README.md b/scripts/README.md
index 1d8ab7a..07c0bef 100644
--- a/scripts/README.md
+++ b/scripts/README.md
@@ -4,7 +4,8 @@ This directory contains scripts for automating the maintenance of the GoogleFont
 
 ## Update-FontsData.ps1
 
-This script automatically updates the `src/FontsData.json` file with the latest font metadata from Google Fonts API.
+This script automatically updates the `src/FontsData.json` file with the latest font metadata from
+Google Fonts API.
 
 ### Features
 
@@ -24,6 +25,7 @@ This script automatically updates the `src/FontsData.json` file with the latest
 5. **PR Supersedence**: After creating a new PR, the script:
    - Searches for existing open PRs with titles matching `Auto-Update*` (excluding the newly created PR)
    - Closes each superseded PR with a comment referencing the new PR number
+   - Deletes the branches associated with superseded PRs
    - Ensures only the latest update PR remains open
 
 ### PR Lifecycle Management
@@ -33,20 +35,25 @@ The font data updater implements PR supersedence similar to Dependabot. When a n
 - The script first creates the new PR
 - Then checks for existing open `Auto-Update*` PRs (excluding the newly created one)
 - Each existing PR receives a comment referencing the new PR number:
+
   ```text
   This PR has been superseded by #[NEW_PR_NUMBER] and will be closed automatically.
 
   The font data has been updated in the newer PR. Please refer to #[NEW_PR_NUMBER] for the most current changes.
   ```
+
 - All superseded PRs are automatically closed
+- Branches for closed PRs are deleted
 
-This means there is no need for a separate cleanup workflow on merge — by the time a PR is merged, it is already the only open Auto-Update PR.
+This means there is no need for a separate cleanup workflow on merge — by the time a PR is merged,
+it is already the only open Auto-Update PR.
 
 ### Workflow
 
 #### Update-FontsData.yml
 
 Handles the scheduled updates, PR creation, and supersedence:
+
 - **Trigger**: Daily at midnight UTC, or manual via `workflow_dispatch`
 - **Authentication**: Uses GitHub App credentials for API access
 - **Permissions**: Requires secrets:
@@ -65,8 +72,8 @@ You can manually trigger an update using the GitHub Actions UI:
 
 ### Configuration
 
-The supersedence behavior is built into the script and requires no additional configuration. The message posted when closing superseded PRs can be
-customized by modifying `scripts/Update-FontsData.ps1`.
+The supersedence behavior is built into the script and requires no additional configuration. The message
+posted when closing superseded PRs can be customized by modifying `scripts/Update-FontsData.ps1`.
 
 ### Development
 
@@ -76,7 +83,8 @@ To test changes to the update script:
 2. Modify `scripts/Update-FontsData.ps1`
 3. Push the branch
 4. Manually trigger the workflow on your feature branch
-5. The script will detect it's running on a feature branch and update the existing branch instead of creating a new PR
+5. The script will detect it's running on a feature branch and update the existing branch instead of
+   creating a new PR
 
 ### Troubleshooting