Added a note to build.zig files that denotes what version of zig they have been tested with.

build.zig

@@ -1,6 +1,7 @@
 const std = @import("std");
 const raylib = @import("src/build.zig");
 
+// This has been tested to work with zig master branch as of commit 87de821 or May 14 2023
 pub fn build(b: *std.Build) void {
     raylib.build(b);
 }

examples/build.zig

@@ -1,6 +1,7 @@
 const std = @import("std");
 const builtin = @import("builtin");
 
+// This has been tested to work with zig master branch as of commit 87de821 or May 14 2023
 fn add_module(comptime module: []const u8, b: *std.Build, target: std.zig.CrossTarget, optimize: std.builtin.OptimizeMode) !*std.Build.Step {
     if (target.getOsTag() == .emscripten) {
         @panic("Emscripten building via Zig unsupported");

src/build.zig

@@ -1,5 +1,7 @@
 const std = @import("std");
 
+
+// This build script has been tested to work with zig master branch as of commit 87de821 or 14 May 2023
 pub fn addRaylib(b: *std.Build, target: std.zig.CrossTarget, optimize: std.builtin.OptimizeMode) *std.Build.CompileStep {
     const raylib_flags = &[_][]const u8{
         "-std=gnu99",