Add CI badges, coverage tracking, and improve README with licenses info

Author: MimoJanra

.github/workflows/test.yml

@@ -2,26 +2,29 @@ name: Tests
 
 on:
   push:
-    branches: [ main, master ]
+    branches: [ main ]
   pull_request:
-    branches: [ main, master ]
+    branches: [ main ]
 
 jobs:
   test:
-    name: Test
+    name: Test on Go ${{ matrix.go-version }}
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        go-version: ["1.22", "1.23", "1.24"]
     steps:
       - name: Checkout code
-        uses: actions/checkout@v6
+        uses: actions/checkout@v4
 
       - name: Setup Go
-        uses: actions/setup-go@v6
+        uses: actions/setup-go@v5
         with:
-          go-version: "1.24"
+          go-version: ${{ matrix.go-version }}
           cache: true
 
       - name: Run tests
-        run: go test -v -race -coverprofile=coverage.out $(go list ./... | grep -v '/examples')
+        run: go test -v -race -coverprofile=coverage.out ./...
 
       - name: Check coverage
         run: |
@@ -33,8 +36,8 @@ jobs:
           fi
 
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v6
+        uses: codecov/codecov-action@v4
         with:
           files: ./coverage.out
           flags: unittests
-          name: codecov-umbrella
+          name: codecov-${{ matrix.go-version }}

README.md

@@ -1,9 +1,10 @@
 # confkit
 
-[![Go Version](https://img.shields.io/badge/go-1.24%2B-blue)](https://golang.org/doc/devel/release)
+[![Go Version](https://img.shields.io/badge/go-1.22%2B-blue)](https://golang.org/doc/devel/release)
 [![Go Reference](https://pkg.go.dev/badge/github.com/MimoJanra/confkit.svg)](https://pkg.go.dev/github.com/MimoJanra/confkit)
-[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](LICENSE)
-[![GitHub Release](https://img.shields.io/github/v/release/MimoJanra/confkit.svg)](https://github.com/MimoJanra/confkit/releases)
+[![Tests](https://github.com/MimoJanra/confkit/actions/workflows/test.yml/badge.svg)](https://github.com/MimoJanra/confkit/actions/workflows/test.yml)
+[![codecov](https://codecov.io/gh/MimoJanra/confkit/branch/main/graph/badge.svg)](https://codecov.io/gh/MimoJanra/confkit)
+[![License: MIT](https://img.shields.io/badge/License-MIT-green.svg)](LICENSE)
 [![Go Report Card](https://goreportcard.com/badge/github.com/MimoJanra/confkit)](https://goreportcard.com/report/github.com/MimoJanra/confkit)
 [![Documentation](https://img.shields.io/badge/docs-mimojanra.github.io-blue)](https://mimojanra.github.io/confkit/)
 [![LLM Context](https://img.shields.io/badge/llms.txt-reference-brightgreen)](./llms.txt)
@@ -548,4 +549,14 @@ vault.VaultKubernetesAuth(role, jwt string) VaultAuth
 
 ## License
 
-MIT
+MIT — A permissive, redistributable license with minimal restrictions.
+
+confkit is released under the MIT License, which allows you to:
+- ✅ Use commercially (SaaS, proprietary software, etc.)
+- ✅ Modify and redistribute
+- ✅ Use in closed-source projects
+- ✅ Sublicense
+
+The only requirement: include a copy of the license in your distribution.
+
+See [LICENSE](LICENSE) file for full text.