Techniques: landmarks are missed in Navigation

[gregoriopellegrino]

In the principles, in the Navigation section, we have the mention of landmarks, but it is not present in the techniques.

[gregoriopellegrino]

@GeorgeKerscher we can remove landmarks from the principles

[gregoriopellegrino]

@GeorgeKerscher can you still make this change? Would you rather have it done by me?

[GeorgeKerscher]

@gregoriopellegrino

If it is simply to remove landmarks from the principles in the navigation section, I am happy to do that.

[gregoriopellegrino]

If it is simply to remove landmarks from the principles in the navigation section, I am happy to do that.

Yes, that is correct, it is only to be removed.

[gautierchomel]

I reopen this issue as I got feedback that Landmark information is an important one for complex books.