Its easy through a hosting site:
1. Download and create an account with Imgur 2. Upload your photo 3. Long press on the pic 4. Click "Share direct link' 5. Copy the url 6. Click the image icon (2 mountains & sun) 7. Paste the url in between [img| and |/img] 8. Submit.
If you did it right we'll all be jealous of your sweet pic