{nodes} is about nodes in {diagrams}.
This tag should be used for questions related to nodes in diagrams, e.g. \node in TikZ diagrams.
A node is in general a rectangle or circle drawn in a tikz diagram with a defined position. It can also contain some text.
General syntax:
\node at (<coordinates>) [<options>] {<text>}};
The syntax \node is a shorthand for \path node.
