Copying from ConfigMap README results in invalid ConfigMap character (non-breaking hypen)

[victortrac]

The current ConfigMap README has a list of configuration names that use a unicode non-breaking hyphen instead of an actual hyphen. While the advantage is that the table is single-lined, it means that users who copy the config names and paste them into their config maps get a configuration that is ignored.

Visually, copying from the README looks the same:

whitelist‑source‑range
whitelist-source-range

But of course it doesn't properly evaluate as true in go: https://play.golang.org/p/AIO11xtQLGB

This is probably a source of frustration for many users copying configuration options from the README.