refactor: move docs and examples to src folder, update README with accurate benchmarks

examples/demo/build.zig

@@ -1,42 +0,0 @@
-const std = @import("std");
-
-pub fn build(b: *std.Build) void {
-    const target = b.standardTargetOptions(.{});
-    const optimize = b.standardOptimizeOption(.{});
-
-    // Get dependencies
-    const pugz_dep = b.dependency("pugz", .{
-        .target = target,
-        .optimize = optimize,
-    });
-    const httpz_dep = b.dependency("httpz", .{
-        .target = target,
-        .optimize = optimize,
-    });
-
-    // Main executable
-    const exe = b.addExecutable(.{
-        .name = "demo",
-        .root_module = b.createModule(.{
-            .root_source_file = b.path("src/main.zig"),
-            .target = target,
-            .optimize = optimize,
-            .imports = &.{
-                .{ .name = "pugz", .module = pugz_dep.module("pugz") },
-                .{ .name = "httpz", .module = httpz_dep.module("httpz") },
-            },
-        }),
-    });
-
-    b.installArtifact(exe);
-
-    const run_cmd = b.addRunArtifact(exe);
-    run_cmd.step.dependOn(b.getInstallStep());
-
-    if (b.args) |args| {
-        run_cmd.addArgs(args);
-    }
-
-    const run_step = b.step("run", "Run the demo server");
-    run_step.dependOn(&run_cmd.step);
-}