correct ci by renaming workflows folder

.github/workflow/dockerimage.yml

@@ -1,14 +0,0 @@
-name: Docker Image CI
-
-on: [push]
-
-jobs:
-
-  build:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v2
-    - name: Unit test
-      run: auto/test
-    - name: Build the Docker image
-      run: auto/build

.github/workflows/main.yml

@@ -1,17 +0,0 @@
-name: CI
-
-on: [push]
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v2
-    - name: Run a one-line script
-      run: echo Hello, world!
-    - name: Run a multi-line script
-      run: |
-        echo Add other actions to build,
-        echo test, and deploy your project.