Add CHANGELOG entry

CHANGELOG.md

@@ -1,6 +1,7 @@
 ## Pending
 
 ### Breaking changes
+- [\#348](https://github.com/arkworks-rs/snark/pull/334) Introduce a `Relation` trait, change the `SNARK` traits to use it, and break down `ConstraintSynthesizer` into three traits.
 
 ### Features
 - [\#347](https://github.com/arkworks-rs/snark/pull/347) Add `into_inner` function for `ConstraintSystemRef<F>`.
@@ -10,6 +11,7 @@
 ### Bug fixes
 
 
+
 ## v0.2.0
 
 ### Breaking changes
@@ -23,6 +25,8 @@
 ### Bug fixes
 - [\#340](https://github.com/arkworks-rs/snark/pull/340) Compile with `panic='abort'` in release mode, for safety of the library across FFI boundaries.
 
+
+
 ## v0.1.0
 
 This tag corresponds to the old `zexe` codebase.

snark/src/lib.rs

@@ -97,7 +97,7 @@ pub trait UniversalSetupSNARK<R: NPRelation>: SNARK<R> {
     /// Specifies how to bound the size of public parameters required to
     /// generate the index proving and verification keys for a given
     /// circuit.
-    /// 
+    ///
     /// For example, for SNARKs that rely on polynomial commitments, this would
     /// be the maximum degree of polynomials required to prove a given
     /// instance.