title: Creating a default manifest for git-repo
body: <p>I'm trying to use git repo for my own project. I understand I have to create a default.xml file and using to link to all the repositories available but It's not clear how to do that.
  I tried creating a simple xml file and put in on a server. I also added 2 remote configurations and projects.</p>
  
  <p>From what I read the default.xml file must also be in a repository but this step is not clear.</p>
  
  <p>When I try to use the command repo init -u http:// my_custom_url /manifest/ I get a curl download error. </p>
  
  <p>Any advice or steps I have to take in order to create the default manifest ?</p>