small change to the ChunkMap examples
//! use building_blocks_storage::prelude::*;
//!
//! let ambient_value = 0;
-//! let chunk_shape = Point3i::fill(16);
-//! let builder = ChunkMapBuilder3x1 { chunk_shape, ambient_value };
+//! let builder = ChunkMapBuilder3x1 { chunk_shape: Point3i::fill(16), ambient_value };
//! let mut map = builder.build_with_hash_map_storage();
//!
//! // Although we only write 3 points, 3 whole dense chunks will be inserted.
//! # use building_blocks_core::prelude::*;
//! # use building_blocks_storage::prelude::*;
//! #
-//! # let chunk_shape = Point3i::fill(16);
-//! #
-//! let builder = ChunkMapBuilder3x1 { chunk_shape, ambient_value: 0 };
+//! let builder = ChunkMapBuilder3x1 { chunk_shape: Point3i::fill(16), ambient_value: 0 };
//! let mut map = builder.build_with_write_storage(
//! FastCompressibleChunkStorage::with_bytes_compression(Lz4 { level: 10 })
//! );
