Add CLI tool + disclaimer to Authy guide (#373)

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## Description
Adds a hyperlink to Neeraj's CLI tool shown in ente Discord, as well as
a disclaimer to check all accounts have been imported before deleting
Authy data
<!--- Describe your changes in detail -->

## Type of Change

<!--- Put an `x` in all the boxes that apply: -->

- [ ] 🖼️ New icon
- [ ] ✨ New feature (non-breaking change which adds functionality)
- [ ] 🛠️ Bug fix (non-breaking change which fixes an issue)
- [ ] ❌ Breaking change (fix or feature that would cause existing
functionality to change)
- [ ] 🧹 Code refactor
- [ ] ✅ Build configuration change
- [x] 📝 Documentation
- [ ] 🗑️ Chore

migration-guides/authy.md

@@ -10,6 +10,9 @@ A user on GitHub has written a guide to export our data from Authy (morpheus on
 ## Exporting from Authy
 To export your data, please follow [this guide](https://gist.github.com/gboudreau/94bb0c11a6209c82418d01a59d958c93). This will create a new JSON file with all your Authy TOTP data in it. **Do not share this file with anyone!**
 
+Or, you can [use this tool by Neeraj](https://github.com/ua741/authy-export/releases/tag/v0.0.4) to simplify things and skip to importing to ente Authenticator.
+### *Do note that these tools may not export ALL of your codes. Make sure that all your accounts have been imported successfully before deleting any codes from your Authy account!*
+
 ## Converting the export for ente Authenticator
 So now that you have the JSON file, does that mean it can be imported into ente Authenticator? Nope.
 
@@ -17,7 +20,7 @@ This is because the code in the guide exports your Authy data for Bitwarden, not
 
 <img width="454" alt="ente Authenticator Screenshot" src="https://github.com/gweeeen/auth/assets/41323182/30566a69-cfa0-4de0-9f0d-95967d4c5cad">
 
-So, this means that even if you try to import this file, nothing will happen. But don't worry, I've written a program in Python that converts the JSON file into a TXT file that ente Authenticator can use!
+So, this means that even if you try to import this file, nothing will happen. But don't worry, I've written a program in Python that converts the JSON file into a TXT file that ente Authenticator can use! (It's definitely not written **professionaly**, but hey it gets the job done so I'm happy with that.)
 
 You can download my program [here](https://github.com/gweeeen/ducky/blob/main/duckys_other_stuff/authy_to_ente.py). Or if you **really like making life hard**, then you can make a new Python file and copy this code to it: