Update README.md (#3601)

# Description of Changes

Please provide a summary of the changes, including:

- What was changed
- Why the change was made
- Any challenges encountered

Closes #(issue_number)

---

## Checklist

### General

- [ ] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [ ] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md)
(if applicable)
- [ ] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/HowToAddNewLanguage.md)
(if applicable)
- [ ] I have performed a self-review of my own code
- [ ] My changes generate no new warnings

### Documentation

- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)

### UI Changes (if applicable)

- [ ] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)

### Testing (if applicable)

- [ ] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md#6-testing)
for more details.

README.md

@@ -156,7 +156,7 @@ Stirling-PDF currently supports 40 languages!
 | Turkish (Türkçe) (tr_TR)                     | ![97%](https://geps.dev/progress/97)   |
 | Ukrainian (Українська) (uk_UA)               | ![99%](https://geps.dev/progress/99)   |
 | Vietnamese (Tiếng Việt) (vi_VN)              | ![73%](https://geps.dev/progress/73)   |
-| Malayalam (മലയാളം) (ml_ML)              | ![99%](https://geps.dev/progress/99)   |
+| Malayalam (മലയാളം) (ml_IN)              | ![99%](https://geps.dev/progress/99)   |
 
 ## Stirling PDF Enterprise