There are many contents in the (*very big*) Secret concept page which
are actually tasks. This PR proposes a separation of some contents
into separate tasks, so that we have a (hopefully) better organization
of the content and we make room for improvement to the concept itself.
Note that the creation of the `configmap-secret` directory (instead of
`secret`) is an intent to create a folder for both ConfigMap and Secret,
both of which are about configurations though there are quite some
differences between them.
Shubham Kuchhal
Sibi Prabakaran
xieyanker
Hrishikesh Barua
Sushil Kumar
Hao Yuan
Qiming Teng