Update README.md

.github/workflows/d.yml

@@ -0,0 +1,32 @@
+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+name: D
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+
+permissions:
+  contents: read
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+    - uses: dlang-community/setup-dlang@4c99aa991ce7d19dd3064de0a4f2f6b2f152e2d7
+
+    - name: 'Build & Test'
+      run: |
+        # Build the project, with its main file included, without unittests
+        dub build --compiler=$DC
+        # Build and run tests, as defined by `unittest` configuration
+        # In this mode, `mainSourceFile` is excluded and `version (unittest)` are included
+        # See https://dub.pm/package-format-json.html#configurations
+        dub test --compiler=$DC

README.md

@@ -17,6 +17,8 @@
 `[2021-Dec-23 11:17:35.3527637]	(source/dlog/testing/thing.d:12): This is a log message`
 
 ---
+    
+[![D](https://github.com/deavmi/dlog/actions/workflows/d.yml/badge.svg)](https://github.com/deavmi/dlog/actions/workflows/d.yml)
 
 ## Usage
 
@@ -170,4 +172,4 @@ of a custom logger, such as `DefaultLogger`.
 
 ## License
 
-LGPL v3
+LGPL v3