Update README.md

Author: Monolith-sec

README.md

@@ -47,7 +47,7 @@ See **[monolith-sec.com](https://monolith-sec.com/#downloads)**.
 | Data         | `app/src/main/java/com/monolith/app/data/`   | Room database with SQLCipher encryption                        |
 | Native       | `app/src/main/cpp/`                          | libsodium-based hybrid encryption (X25519 + ChaCha20-Poly1305) |
 
-For details on each layer, the cryptographic primitives, and the full threat model, refer to the [Whitepaper](https://www.monolith-sec.com/#whitepaper).
+For details on each layer, the cryptographic primitives, and the full threat model, refer to the [Whitepaper](https://monolith-sec.com/#whitepaper).
 
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