Update publish_docs.yml

.github/workflows/publish_docs.yml

@@ -22,6 +22,7 @@ jobs:
       run: |
         ssh-agent -a $SSH_AUTH_SOCK > /dev/null
         ssh-add - <<< "${{ secrets.SSH_KEY }}"
+        mkdir $HOME/.ssh
         echo -n "${{ secrets.SSH_KNOWN_HOST }}" > $HOME/.ssh/known_hosts
     - name: Upload via SSH
       run: 'tar -cz build/html/ | ssh ${{ secrets.SSH_USER }}@${{ secrets.SSH_SERVER }} "mkdir -p /www/$(date +%Y.%m.%d); cd /www/$(date +%Y.%m.%d); tar --strip-components=1 -xz; rm /www/live; cd /www; ln -sf $(date +%Y.%m.%d) live;"'