Create dotnet-core.yml

Author: TheConstructor

.github/workflows/dotnet-core.yml

@@ -0,0 +1,25 @@
+name: .NET Core
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Setup .NET Core
+      uses: actions/setup-dotnet@v1
+      with:
+        dotnet-version: 3.1.301
+    - name: Install dependencies
+      run: dotnet restore
+    - name: Build
+      run: dotnet build --configuration Release --no-restore
+    - name: Test
+      run: dotnet test --no-restore --verbosity normal

Readme.md

@@ -1,3 +1,5 @@
 # System.Text.Json.Extensions
 
+[![.NET Core build](https://github.com/TheConstructor/System.Text.Json.Extensions/workflows/.NET%20Core/badge.svg)](https://github.com/TheConstructor/System.Text.Json.Extensions/actions?query=workflow%3A%22.NET+Core%22)
+
 This project tries to collect some extensions and converters that ease the usage of `System.Text.Json`.