Add go test workflow + badge

.github/workflows/go.yml

@@ -0,0 +1,25 @@
+# This workflow will build a golang project
+# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-go
+
+name: Tests
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Set up Go
+      uses: actions/setup-go@v4
+      with:
+        go-version: '1.22.x'
+        
+    - name: Test
+      run: go test -v ./...

README.md

@@ -2,7 +2,8 @@ Note: This package is currently under active development and may have significan
 
 # go-elo: A flexible elo calculator for Go
 
-![coverage](https://raw.githubusercontent.com/gabehf/go-elo/badges/.badges/main/coverage.svg)
+![coverage](https://raw.githubusercontent.com/gabehf/go-elo/badges/.badges/main/coverage.svg)   ![coverage](https://github.com/gabehf/go-elo/actions/workflows/go.yml/badge.svg)
+
 
 This package allows you to add flexible elo/skill tracking to your application.