If you didn't, I can teach you.
Step 1: Click on Make a meme.
Step 2: Click on Upload a new template.
Step 3: Upload an image from your device (For example, the evolution of religion).
Step 4: Press the little box next to Allow this template to be shared publicly.
Step 5: Be sure to fill in the name of the template of the image you uploaded. Also fill in how the template it should be used.
Step 6: Press upload.