Delete .github directory

.github/workflows/docker-image.yml

@@ -1,20 +0,0 @@
-name: Docker Image CI
-
-#  commit push 后 自动编译打包 关闭
-on:
-
-#  push:
-#    branches: [ main ]
-#  pull_request:
-#    branches: [ main ]
-
-jobs:
-
-  build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v2
-    - name: Build the Docker image
-      run: docker build . --file Dockerfile --tag hongwenjun/nginx-php