Diffs compared to original repo (human):
plugins/__init__.py
    + plugins.register(librejs_ads)
plugins/
    + librejs_ads.py
static/plugins/js/
static/plugins/css/

Notes:
Search results:
1 - Headline (Upto 10 words max) : Can have highlighted bold words
2 - Description (2 lines)
3 - Link
4 - Ad label

To make a patch:

diff -dur ~/searx-0.17.0 ../searx-0.17.0 > searx_ads.patch

To reapply patch :
1. Go to original directory
2. Paste patch file in dir.
3. Execute following command
    patch -p0 < PatchFile