Wikipedia article about PhD thesis
No, it would not be advisable to create a Wikipedia page solely devoted to the new technique. If you are one of the sole people responsible for the technique and its development, you run the risk of creating a conflict of interest. Even without that issue, a new technique likely has few published sources to support it, so you will have difficulty establishing notability. Without additional support from reliable sources, your new page may be deleted.

Luckily, there are numerous other options for promoting your work in laymen-friendly ways. It may be feasible (and may even provide better visibility of your work, even to prospective employers) to write a few blog entries about the approach, produce a short Youtube video about it, or even a dedicated wiki, if you see the technique undergoing changes or optimizations in the near future.