Enhance ZON parser to support tuples and update documentation

- Modify parser to handle ZON tuples (`.{ 1, 2, 3 }`) as arrays
- Update README with more detailed explanation of ZON tuple syntax
- Add multiple example ZON files demonstrating tuple usage
- Implement tuple parsing in `parser.py`
- Add test case for tuple parsing

examples/example.zon

@@ -7,5 +7,5 @@
             .hash = "abcdef123456",
         },
     },
-    .tags = .["tag1", "tag2"],
-}
+    .tags = .{ "tag1", "tag2" },
+}

examples/nested_test.zon

@@ -0,0 +1,14 @@
+.{
+    .simple_object = .{
+        .x = 1,
+        .y = 2,
+    },
+    .simple_tuple = .{ 1, 2, 3 },
+    .nested_object = .{
+        .nested = .{
+            .a = 1,
+            .b = 2,
+        },
+    },
+    .nested_tuple = .{ .{ 1, 2 }, .{ 3, 4 } },
+}

examples/simple.zon

@@ -0,0 +1,6 @@
+.{
+    .name = "example",
+    .version = "1.0.0",
+    .numbers = .{ 1, 2, 3 },
+    .strings = .{ "one", "two", "three" },
+}

examples/simple_nested.zon

@@ -0,0 +1,4 @@
+.{
+    .simple_tuple = .{ 1, 2, 3 },
+    .nested_tuple = .{ .{ 1, 2 }, .{ 3, 4 } },
+}

examples/tuple_test.zon

@@ -0,0 +1,6 @@
+.{
+    .simple_tuple = .{ 1, 2, 3 },
+    .string_tuple = .{ "one", "two", "three" },
+    .empty_tuple = .{""},
+    .mixed_tuple = .{ 1, "two", true },
+}

examples/zig_tuples.zon

@@ -0,0 +1,22 @@
+.{
+    // Object with field values
+    .metadata = .{
+        .name = "example",
+        .version = "1.0.0",
+    },
+
+    // Tuples of different types
+    .numbers = .{ 1, 2, 3 },
+    .strings = .{ "one", "two", "three" },
+    .mixed = .{ 1, "two", true, null },
+    .empty_string = .{""},
+
+    // Nested structures
+    .nested = .{
+        .tuple_in_object = .{ 4, 5, 6 },
+        .object_in_tuple = .{ .{ .x = 1, .y = 2 }, .{ .x = 3, .y = 4 } },
+    },
+
+    // Empty tuple
+    .empty = .{},
+}