Language string set up for CHARM_TPL and CHARM_TPL_SLOGAN

I am experimenting now with the Charm template and am pretty pleased with it. I will be switching to it soon. This site is my sandbox: https://dev2.carneycorner.com where I am copying the content from drcarney.com

If you look at my site the language strings are displaying.

I did notice that I can simply remove these language strings from within the template itself but I was thinking that if I could use actual language strings that would be great for the future when I hope to add some other languages.

I added language string over rides for CHARM_TPL and CHARM_TPL_SLOGAN but they did not display. So, My question is whether the language strings are supposed to be working.

I am assuming at this point that I need to something more to add the language strings to the system?

Thanks, Sean