Update README.

Author: trekhleb

README.es-ES.md

@@ -18,10 +18,6 @@ _Léelo en otros idiomas:_
 [_Français_](README.fr-FR.md),
 [_Português_](README.pt-BR.md)
 
-> Estamos escribiendo un libro que explicará claramente, en detalle, los principales algoritmos.
-Si desea ser notificado cuando se publique el libro "Algoritmos JavaScript
-lanzamientos, [haga clic aquí](https://upscri.be/402324/).
-
 ## Estructuras de Datos
 
 Una estructura de datos es una forma particular de organizar y almacenar datos en un ordenador para que pueda

README.fr-FR.md

@@ -19,10 +19,6 @@ _Lisez ceci dans d'autres langues:_
 [_Español_](README.es-ES.md),
 [_Português_](README.pt-BR.md)
 
-> Nous écrivons actuellement un livre qui expliquera clairement, en détail, les 
-principaux algorithmes. Si vous souhaitez être notifié lorsque le livre 
-“JavaScript Algorithms” paraîtra, [cliquez ici](https://upscri.be/402324/).
-
 ## Data Structures
 
 Une structure de données est une manière spéciale d'organiser et de stocker 

README.ko-KR.md

@@ -17,10 +17,6 @@ _Read this in other languages:_
 [_Español_](README.es-ES.md),
 [_Português_](README.pt-BR.md)
 
-> 우리는 주요 알고리즘에 대해 더 자세한 설명을 담은 책을 제작 중입니다.
-만약 “JavaScript Algorithms” 책이 언제 출시되는지 알고 싶다면
-, [여기를 클릭하세요.](https://upscri.be/402324/).
-
 ## 자료 구조
 
 자료 구조는 데이터를 특정 방식으로 구성하고 저장함으로써 더 효율적으로

README.md

@@ -19,10 +19,6 @@ _Read this in other languages:_
 [_Español_](README.es-ES.md),
 [_Português_](README.pt-BR.md)
 
-> We’re writing a book that will clearly explain, in detail, the main algorithms. 
-If you’d like to be notified when the “JavaScript Algorithms” book 
-launches, [click here](https://upscri.be/402324/).
-
 ## Data Structures
 
 A data structure is a particular way of organizing and storing data in a computer so that it can
@@ -291,3 +287,9 @@ Below is the list of some of the most used Big O notations and their performance
 | **Shell sort**        | n&nbsp;log(n)   | depends on gap sequence   | n&nbsp;(log(n))<sup>2</sup>  | 1         | No         |           |
 | **Counting sort**     | n + r           | n + r               | n + r               | n + r     | Yes       | r - biggest number in array |
 | **Radix sort**        | n * k           | n * k               | n * k               | n + k     | Yes       | k - length of longest key |
+
+## The Book
+
+We’re writing a book that will clearly explain, in detail, the main algorithms. 
+If you’d like to be notified when the “JavaScript Algorithms” book 
+launches, [click here](https://upscri.be/402324/).

README.pl-PL.md

@@ -19,11 +19,6 @@ _Read this in other languages:_
 [_Español_](README.es-ES.md),
 [_Português_](README.pt-BR.md)
 
-> Jesteśmy w trakcie pisania książki, która w jasny i specyficzny sposób, 
-wyjaśni główne algorytmy. Jeżeli chcesz dostać powiadomienie o tym kiedy 
-książka “JavaScript Algorithms†zostanie wydana,[kliknij tutaj](https://upscri.be/402324/).
-
-
 ## Struktury Danych
 
 Struktura danych to sposób uporządkowania i przechowywania informacji w 

README.pt-BR.md

@@ -19,10 +19,6 @@ _Leia isto em outros idiomas:_
 [_Français_](README.fr-FR.md),
 [_Español_](README.es-ES.md)
 
-> Nós estamos escrevendo um livro que explicará claramente, em datalhes, os principais algoritmos.
-Se você deseja ser notificado quando o livro "Algoritmos em JavaScript” 
-for lançado, [clique aqui](https://upscri.be/402324/).
-
 ## Data Structures
 
 Uma estrutura de dados é uma maneira particular de organizar e armazenar dados em um computador para que ele possa

README.zh-CN.md

@@ -16,10 +16,6 @@ _Read this in other languages:_
 [_Español_](README.es-ES.md),
 [_Português_](README.pt-BR.md)
 
-> We’re writing a book that will clearly explain, in detail, the main algorithms. 
-If you’d like to be notified when the “JavaScript Algorithms” book 
-launches, [click here](https://upscri.be/402324/).
-
 ## 数据结构
 
 数据结构是在计算机中 组织和存储数 据的一种特殊方式, 它可以高效地 访问和修改 数据。更确切地说, 数据结构是数据值的集合, 它们之间的关系、函数或操作可以应用于数据。

README.zh-TW.md

@@ -15,10 +15,6 @@ _Read this in other languages:_
 [_Español_](README.es-ES.md),
 [_Português_](README.pt-BR.md)
 
-> We’re writing a book that will clearly explain, in detail, the main algorithms. 
-If you’d like to be notified when the “JavaScript Algorithms” book 
-launches, [click here](https://upscri.be/402324/).
-
 ## 資料結構
 
 資料結構是一個電腦用來組織和排序資料的特定方式，透過這樣的方式資料可以有效率地被讀取以及修改。更精確地說，一個資料結構是一個資料值的集合、彼此間的關係，函數或者運作可以應用於資料上。