As per the link you provided:
const string OtherSTSAddress = "https://ipsts.federatedidentity.net/SecurityTokenService/InteropSts.svc/Sts";
const string YourSTSAddress = "https://your-sts/adfs/ls/";
So the former is the WS-Trust endpoint of StarterSTS.
The latter is the ADFS WS-Fed endpoint. Just substitute the URL of the box where you installed ADFS in the "your-sts" section.
According to the article, that's all you need.