How to add this ad at the end of every topic?

[tobiaseigen]

There is a plugin for this.

House Ads in the official Ad Plugin

IF YOU ARE RUNNING AN AD BLOCKER RIGHT NOW YOU WILL HAVE A VERY BAD TIME TRYING TO SET THIS UP! TURN IT OFF BEFORE PROCEEDING DOWN THIS PATH! You’ve been warned. Also be aware of browsers with built-in ad-blocker functionality (eg. Brave) I’ve been working on adding support for house ads in the ad plugin and would like some feedback about how you’d use it. Here’s a video to demonstrate how I have it working now: You define a set of ads using html and the usual theme…