The addition of the backslashes was to fix problems when building docs in sphinx. I noticed that most of these are in single backticks; that's incorrect rst (correct Markdown). Maybe switch those to the double backticks that rst uses? Please do build docs (just make html in the docs and then make sure that they look right (files in docs/_build/html).

Alright, python3 does not give DeprecationWarnings anymore, and the docs look the same as the current version on the website, when build with python2 and python3.
Also fixed a couple small typo's I found. PLease have a look

By this:

Maybe switch those to the double backticks that rst uses?

I meant that the way it looks now is wrong. The stuff in italics should be in monospace font. This is old stuff in OPS; we never fixed some old docs, and were writing more like Markdown than RST.

As long as your working on these sections, do you mind switching them to double-backticks, so they correctly render as monospace font?

The rest looks good to me!

As long as your working on these sections, do you mind switching them to double-backticks, so they correctly render as monospace font?

sure, done