refactor: update README.md (#87)

Signed-off-by: Michele Orrù <[email protected]>

Author: mmaker

README.md

@@ -1,10 +1,8 @@
-# sigma-rs
+# sigma-proofs
 
 A Rust library for building and composing Σ-protocols (Sigma protocols) for zero-knowledge proofs.
 
-## What is sigma-rs?
-
-This library provides a flexible framework for creating zero-knowledge proofs for any statement expressible as a linear relation over group elements. Using the Fiat-Shamir transformation, these interactive protocols become non-interactive proofs suitable for real-world applications.
+This library focuses on any statement that can be expressed as a linear relation over group elements. Using the Fiat-Shamir transformation, these interactive protocols become non-interactive proofs suitable for real-world applications.
 
 ## Quick Example