fix version number (#38)

Author: srinathsetty

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "spartan"
-version = "0.4.0"
+version = "0.4.1"
 authors = ["Srinath Setty <[email protected]>"]
 edition = "2018"
 description = "High-speed zkSNARKs without trusted setup"

README.md

@@ -29,7 +29,7 @@ Among transparent SNARKs, Spartan offers the fastest prover with speedups of 36
 ## Examples
 To import `libspartan` into your Rust project, add the following dependency to `Cargo.toml`:
 ```text
-spartan = "0.3.0"
+spartan = "0.4.1"
 ```
 
 The following example shows how to use `libspartan` to create and verify a SNARK proof.