Update README

README.md

@@ -21,6 +21,22 @@ come after x86_64 is fully implemented and actually works.
 You can see an example of how this library is supposed to be used in
 [test/root.zig](packages/cjit/test/root.zig).
 
+## glfw
+
+Zig bindings for [GLFW](https://www.glfw.org/), an open source, multi-platform
+library for OpenGL, OpenGL ES and Vulkan development, providing support for
+window and context creation and receiving keyboard, mouse and gamepad inputs.
+Original C sources are included and compiled with Zig's build system. Bindings
+are complete and lightly ziggified, providing simplified names, method syntax
+and some constants grouped into enums.
+
+I initially relied on bindings available in the wild, but they eventually fell
+behind both Zig and GLFW versions. That said, these bindings do not support
+MacOS at all, as I do not have means to test them on MacOS nor do I want to.
+
+This package is actually used by my other project, codenamed
+[voxel-game](/:root/renati/voxel-game).
+
 ## js
 
 Zig bindings for Fabrice Bellard's QuickJS. Original C sources are included and
@@ -56,8 +72,8 @@ Vector math library with support for vectors, matrices and ×8 SIMD operations
 (utilizing SOA layout).
 
 This package is actually used by my other project, codenamed
-[voxel-game](/:root/renati/voxel-game) and is probably the most complete package
-in this repository.
+[voxel-game](/:root/renati/voxel-game) and is probably the most complete
+original package in this repository.
 
 ## web
 
@@ -86,3 +102,12 @@ The other utilities include:
 
 Zig bindings for Xlib (aka libX11), a C library implementing a client of the X
 Window System protocol. The bindings are not complete.
+
+## xcb
+
+Zig bindings for XCB (aka libxcb), a C library implementing the X protocol and a
+lightweight replacement for Xlib. Not every import is typed accurately, but
+enough to make the sample application work.
+
+The sample creates an empty window with a Vulkan surface using
+`VK_KHR_xcb_surface` extension.