Update editors and IDEs (JuliaLang#40883)

* Update editors and IDEs

cc @pfitzseb (Should we still include Juno?), and @fonsp (added Pluto)

[ci skip]
[skip ci]

* Update README.md

README.md

@@ -144,10 +144,7 @@ Support for editing Julia is available for many
 [Sublime Text](https://github.com/JuliaEditorSupport/Julia-sublime), and many
 others.
 
-Supported IDEs include: [Juno](http:https://junolab.org/) (Atom plugin),
-[julia-vscode](https://github.com/JuliaEditorSupport/julia-vscode) (VS
-Code plugin), and
-[julia-intellij](https://github.com/JuliaEditorSupport/julia-intellij)
-(IntelliJ IDEA plugin). The popular [Jupyter](https://jupyter.org/)
-notebook interface is available through
-[IJulia](https://github.com/JuliaLang/IJulia.jl).
+Supported IDEs include: [julia-vscode](https://github.com/JuliaEditorSupport/julia-vscode) (VS
+Code plugin), [Juno](http:https://junolab.org/) (Atom plugin). [Jupyter](https://jupyter.org/)
+notebooks are available through the [IJulia](https://github.com/JuliaLang/IJulia.jl) package, and
+[Pluto](https://github.com/fonsp/Pluto.jl) notebooks through the Pluto.jl package.