perf: markdown more wrap (#365)

.github/workflows/preview-image.yml

@@ -17,7 +17,9 @@ jobs:
         with:
           fetch-depth: 1
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v1
+        uses: docker/setup-buildx-action@v2
+        with:
+          driver-opts: network=host
       - name: Cache Docker layers
         uses: actions/cache@v2
         with:
@@ -34,7 +36,7 @@ jobs:
       - name: Set DOCKER_REPO_TAGGED based on branch or tag
         run: |
           echo "DOCKER_REPO_TAGGED=ghcr.io/${{ github.repository_owner }}/fastgpt-pr:${{ github.event.pull_request.number }}" >> $GITHUB_ENV
-      - name: Build and publish image for PR
+      - name: Build image for PR
         env:
           DOCKER_REPO_TAGGED: ${{ env.DOCKER_REPO_TAGGED }}
         run: |