CI: Add CI

.github/workflows/CI.yml

@@ -0,0 +1,31 @@
+name: CI
+on:
+  - pull_request
+  - push
+jobs:
+  test:
+    name: Julia ${{ matrix.version }} - ${{ matrix.os }} - ${{ matrix.arch }} - ${{ github.event_name }}
+    runs-on: ${{ matrix.os }}
+    continue-on-error: ${{ matrix.version == 'nightly' }}
+    strategy:
+      fail-fast: false
+      matrix:
+        version:
+          - '1.10'
+          - 'nightly'
+        os:
+          - ubuntu-latest
+        arch:
+          - x64
+    steps:
+      - uses: actions/checkout@v4
+      - uses: julia-actions/setup-julia@v2
+        with:
+          version: ${{ matrix.version }}
+          arch: ${{ matrix.arch }}
+      - uses: julia-actions/cache@v1
+      - uses: julia-actions/julia-buildpkg@v1
+      - uses: julia-actions/julia-runtest@v1
+        with:
+          depwarn: error
+      - uses: julia-actions/julia-processcoverage@v1

README.md

@@ -1,5 +1,8 @@
 # AngularCorrelation.jl
 
+[![GitHub CI](https://github.com/op3/AngularCorrelation.jl/workflows/CI/badge.svg)](https://github.com/op3/AngularCorrelation.jl/actions)
+[![License: Gnu GPL v3+](https://img.shields.io/badge/License-GPL%20v3+-blue.svg)](LICENSE)
+
 A package to calculate angular distributions and correlations for γ cascades.
 The direction and polarization of the zeroth γ-ray are known.
 It is aligned with the z axis, the xz plane is the plane of (linear) polarization.