Fix spacing issue in Node.js playbook example.

Author: geerlingguy

nodejs/provisioning/playbook.yml

@@ -8,7 +8,7 @@
   tasks:
     - name: Install EPEL repo.
       yum: name=epel-release state=present
-      
+
     - name: Import Remi GPG key.
       rpm_key:
         key: "https://rpms.remirepo.net/RPM-GPG-KEY-remi"