update README

ProfileView has been updated

README.md

@@ -24,12 +24,8 @@ Other registered packages extend the functionality of Gtk4.jl:
 - [GtkObservables.jl](https://github.com/JuliaGizmos/GtkObservables.jl): provides integration with [Observables.jl](https://github.com/JuliaGizmos/Observables.jl). This package can simplify making interactive GUI's with Gtk4.jl.
 - [Gtk4Makie.jl](https://github.com/JuliaGtk/Gtk4Makie.jl): provides integration with the popular plotting package [Makie.jl](https://github.com/MakieOrg/Makie.jl), specifically its interactive, high performance GLMakie backend.
 
-A port of [ProfileView](https://github.com/timholy/ProfileView.jl) based on Gtk4 is available.
-The registered version of ProfileView.jl uses Gtk.jl and thus cannot be used to profile Gtk4-based code.
-To use the Gtk4 port, enter `add https://github.com/jwahlstrand/ProfileView.jl#gtk4` in Julia's package mode.
-
 ## Current status
-For auto-generated code, Gtk4.jl relies on GObject introspection data generated on a Linux x86_64 machine, which may result in code that crashes on 32 bit computers. This seems to affect mostly obscure parts of GLib that are unlikely to be useful to Julia users, but 32 bit users should be aware of this.
+For auto-generated code, Gtk4.jl relies on GObject introspection data generated on a Linux x86_64 machine, which may result in code that crashes on 32 bit computers. This mostly seems to affect obscure parts of GLib that are unlikely to be useful to Julia users, but 32 bit users should be aware of this.
 
 Note that this package uses binaries for the GTK library and its dependencies that are built and packaged using [BinaryBuilder.jl](https://github.com/JuliaPackaging/BinaryBuilder.jl). On Linux it does **not** use the binaries that are packaged with your distribution. The build scripts for the binaries used by Gtk4.jl, including the library versions currently being used, can be found by perusing [Yggdrasil.jl](https://github.com/JuliaPackaging/Yggdrasil.jl).