⚡ :: docker username 추가

Author: jaemin05

.github/workflows/CD.yml

@@ -27,6 +27,12 @@ jobs:
         with:
           arguments: |
             build
+
+      - name: Login to Dockerhub
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
 
       - name: Docker Build
         run: docker build -t jaemin05/isfp .