How Open edX Events work

[mariajgrimaldi]

Description

Some comments I've gathered from the community survey on the challenges/suggestions section:

At the beginning it was understanding how the filters and events worked, also the difference that exists between each one. But in general it has good documentation to learn how to use it and create new ones.
There is a link to see live examples, https://github.com/openedx/openedx-filters/blob/main/docs/quickstarts/use-filters-to-change-enrollment.rst. This is good, but that repository is a bit out of date in references.

The first and only challenge I had was understanding how it works (that you need a point in edx-platform and create a pipeline), but then it was very useful.

[mariajgrimaldi]

Another related PR openedx/docs.openedx.org#616