Update the book based on the revised second edition (#1014)

* Revised the book

* Update the book with the second revised edition

* Revise base on the manuscript of the first edition

codes/zig/chapter_hashing/hash_map.zig

@@ -23,7 +23,7 @@ pub fn main() !void {
     inc.PrintUtil.printHashMap(i32, []const u8, map);
 
     // 查询操作
-    // 向哈希表输入键 key ，得到值 value
+    // 向哈希表中输入键 key ，得到值 value
     var name = map.get(15937).?;
     std.debug.print("\n输入学号 15937 ，查询到姓名 {s}\n", .{name});