Add codecov and update badges

.github/workflows/CI.yml

@@ -0,0 +1,43 @@
+name: CI
+on:
+  push:
+    branches:
+      - master
+    tags: ['*']
+  pull_request:
+  workflow_dispatch:
+concurrency:
+  # Skip intermediate builds: always.
+  # Cancel intermediate builds: only if it is a pull request build.
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
+jobs:
+  test:
+    name: Julia ${{ matrix.version }} - ${{ matrix.os }} - ${{ matrix.arch }} - ${{ github.event_name }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        version:
+          - '1.9'
+          - '1.10'
+          - '1.11'
+        os:
+          - ubuntu-latest
+          - windows-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@v2
+      - uses: julia-actions/julia-buildpkg@v1
+      - uses: julia-actions/julia-runtest@v1
+      - uses: julia-actions/julia-processcoverage@v1
+      - uses: codecov/codecov-action@v5
+        with:
+          files: lcov.info
+          token: ${{ secrets.CODECOV_TOKEN }}

README.md

@@ -1,14 +1,8 @@
 # Quiver.jl
 
-[build-img]: https://github.com/psrenergy/Quiver.jl/actions/workflows/ci.yml/badge.svg?branch=master
-[build-url]: https://github.com/psrenergy/Quiver.jl/actions?query=workflow%3ACI
-
-[codecov-img]: https://codecov.io/gh/psrenergy/Quiver.jl/coverage.svg?branch=master
-[codecov-url]: https://codecov.io/gh/psrenergy/Quiver.jl?branch=master
-
-| **Build Status** | **Coverage** | **Documentation** |
-|:-----------------:|:-----------------:|:-----------------:|
-| [![Build Status][build-img]][build-url] | [![Codecov branch][codecov-img]][codecov-url] |[![](https://img.shields.io/badge/docs-latest-blue.svg)](https://psrenergy.github.io/Quiver.jl/dev/)
+[![Documentation](https://img.shields.io/badge/docs-dev-blue.svg)](https://psrenergy.github.io/Quiver.jl/dev)
+[![CI](https://github.com/psrenergy/Quiver.jl/actions/workflows/CI.yml/badge.svg)](https://github.com/psrenergy/Quiver.jl/actions/workflows/CI.yml)
+[![codecov](https://codecov.io/gh/psrenergy/Quiver.jl/graph/badge.svg?token=RIZWL1OPRT)](https://codecov.io/gh/psrenergy/Quiver.jl)
 
 Quiver is an alternative data-structure to represent time series data. It is designed for time series that can have extra dimensions such as scenarios, blocks, segments, etc.