A mutable TreeMap is missing in collections overview.

[MaxNevermind]

https://docs.scala-lang.org/overviews/collections/overview.html
https://github.com/scala/docs.scala-lang/blob/master/_overviews/collections/overview.md
https://github.com/scala/docs.scala-lang/blob/master/resources/images/collections.mutable.png

Or it's not supposed to show everything and that's fine?

[MaxNevermind]

Also I've just noticed PriorityQueue is not a Seq, but according to a collections overview it is.

[jvican]

/cc @julienrf