title: "git add" returning "fatal: outside repository" error
body: <p>I'm just entering into the wonderful world of git. 
  I have to submit a bunch of changes that I've made on my program, located in a directory called <code>/var/www/myapp</code>.</p>
  
  <p>I created a new directory <code>/home/mylogin/gitclone</code>.  From this directory, I did a <code>git clone</code> against the public repo and I was able to get the latest copy created. </p>
  
  <p>I'm now trying to figure out how to take all the files in my working folder (<code>/var/www/myapp</code>) and "check them in" to the master repository. </p>
  
  <p>From <code>/home/mylogin/gitclone</code>, I tried <code>git add /var/www/myapp</code> but I'm getting an error that the folder I tried to add is outside the repository.</p>
  
  <p>Can you give me a few pointers on what I'm doing wrong?  Also, I'd like to add everything, whether it's different from the master or not. 
  Thanks.</p>