Add build CI

.github/workflows/ci.yml

@@ -0,0 +1,23 @@
+name: Cargo Build & Test
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  build:
+    name: Rust - latest
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        toolchain:
+          - stable
+          - beta
+          - nightly
+    steps:
+      - uses: actions/checkout@v3
+      - run: rustup update ${{ matrix.toolchain }} && rustup default ${{ matrix.toolchain }}
+      - run: cargo build --verbose
+      - run: cargo test --verbose
+
+

src/lib.rs

@@ -349,7 +349,6 @@ fn gen_key() -> Result<SecretKey, secp256k1::Error> {
 fn new_elligator_swift(sk: SecretKey) -> ElligatorSwift {
     let curve = Secp256k1::new();
     let pk = PublicKey::from_secret_key(&curve, &sk);
-
     ElligatorSwift::from_pubkey(pk)
 }