Typo on page 21

[OmarEid451]

In the first paragraph of 1.2.5 "Network management has historically been
a human-intensive aspect of networking, and while it is ulikely we’ll get people entirely out of the loop, it is
increasingly being addressed by automation and self-healing designs."
Should be changed to unlikely

[drbruced12]

This was fixed in e2da6c5 (in 2021).