Revise README features and download instructions

Updated features list and added new download options.

Author: vaibhavvikas

README.md

@@ -12,13 +12,18 @@ It is really helpful if you want to download a mod or modpack containing various
 
 [Official Factorio Link](https://factorio.com)
 
-![Factorio Mod Downloader](factorio_mod_downloader.png)
+<img width="812" height="466" alt="image" src="https://github.com/user-attachments/assets/473e92de-ebec-4acf-ba5d-e426066fb474" />
+
 
 
 ### Features
 1. Added Dark Mode
 2. Added progress bars and logs to see what files are being downloaded.
-3. Completely interactive and requires no other dependency. 100% standalone app.
+3. Added a seperate downloads section to track each file with custom progress and success icons.
+4. Added speed and progress bar specific updates while file is getting downloaded.
+5. Added multithreading downloads, i.e. file will be getting downloaded in background while new dependencies are being analyzed.
+6. Updated to add the option to downlaod optional dependencies as well (Use with caution as it may significantly increase number of files getting downloaded).
+7. Completely interactive and requires no other dependency. 100% standalone app.
 
 
 ### How to download