Add job

Author: dy

.github/workflows/test.yml

@@ -0,0 +1,14 @@
+name: test
+on: [push, pull_request]
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node: [18, 20, 22]
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node }}
+      - run: npm test

readme.md

@@ -1,4 +1,4 @@
-# fourier-transform
+# fourier-transform [![test](https://github.com/scijs/fourier-transform/actions/workflows/test.yml/badge.svg)](https://github.com/scijs/fourier-transform/actions/workflows/test.yml)
 
 Efficient real-valued FFT for 2<sup>n</sup>-size inputs. Split-radix algorithm with precomputed twiddle factors and typed-array buffers. Zero dependencies.
 
@@ -73,3 +73,5 @@ Based on the split-radix real FFT from [dsp.js](https://github.com/corbanbrook/d
 ## License
 
 MIT
+
+<p align="center"><a href="https://github.com/krishnized/license">ॐ</a></p>