feat(cli): Add empty lines before intro line

When Yarn installs the dependencies running `yarn create instantsearch-app my-app`, the buffer sometimes isn't flushed.

Author: francoischalifour

src/cli/index.js

@@ -179,7 +179,9 @@ const questions = [
 ].filter(question => isQuestionAsked({ question, args: optionsFromArguments }));
 
 async function run() {
+  console.log();
   console.log(`Creating a new InstantSearch app in ${chalk.green(appPath)}.`);
+  console.log();
 
   const config = {
     ...(await getConfiguration({