Use develop branch

Author: chdemko

README.md

@@ -2,13 +2,13 @@ PHP Sorted Collections
 ======================
 ![PHP package](https://github.com/chdemko/php-sorted-collections/workflows/PHP%20Composer/badge.svg?branch=develop)
 [![Documentation Status](https://img.shields.io/readthedocs/php-sorted-collections.svg)](http://php-sorted-collections.readthedocs.io/en/latest/?badge=latest)
-[![Coveralls](https://img.shields.io/coveralls/chdemko/php-sorted-collections.svg)](https://coveralls.io/r/chdemko/php-sorted-collections?branch=master)
-[![Scrutinizer](https://img.shields.io/scrutinizer/g/chdemko/php-sorted-collections.svg)](https://scrutinizer-ci.com/g/chdemko/php-sorted-collections/?branch=master)
+[![Coveralls](https://img.shields.io/coveralls/chdemko/php-sorted-collections.svg)](https://coveralls.io/r/chdemko/php-sorted-collections?branch=develop)
+[![Scrutinizer](https://img.shields.io/scrutinizer/g/chdemko/php-sorted-collections.svg)](https://scrutinizer-ci.com/g/chdemko/php-sorted-collections/?branch=develop)
 [![PHP versions](https://img.shields.io/packagist/dependency-v/chdemko/sorted-collections/php)](https://packagist.org/packages/chdemko/sorted-collections)
 [![Latest Stable Version](https://img.shields.io/packagist/v/chdemko/sorted-collections.svg)](https://packagist.org/packages/chdemko/sorted-collections)
 [![Packagist](https://img.shields.io/packagist/dt/chdemko/sorted-collections.svg)](https://packagist.org/packages/chdemko/sorted-collections)
 [![Latest Unstable Version](https://poser.pugx.org/chdemko/sorted-collections/v/unstable.svg)](https://packagist.org/packages/chdemko/sorted-collections)
-[![License](https://poser.pugx.org/chdemko/sorted-collections/license.svg)](https://raw.githubusercontent.com/chdemko/php-sorted-collections/master/LICENSE)
+[![License](https://poser.pugx.org/chdemko/sorted-collections/license.svg)](https://raw.githubusercontent.com/chdemko/php-sorted-collections/develop/LICENSE)
 
 Sorted Collection for PHP. Insertion, search, and removal compute in `log(n)` time where `n` is the number of items present in the collection. It uses AVL threaded tree [see @Knuth97, 1:320, Sect. 2.3.1] as internal structure.
 
@@ -72,12 +72,12 @@ This should print
 [0,1,2,3,4,5,6,7,8,9]
 ~~~
 
-See the [examples](https://github.com/chdemko/php-sorted-collections/tree/master/examples) and [benchmarks](https://github.com/chdemko/php-sorted-collections/tree/master/benchmarks) folder for more information.
+See the [examples](https://github.com/chdemko/php-sorted-collections/tree/develop/examples) and [benchmarks](https://github.com/chdemko/php-sorted-collections/tree/develop/benchmarks) folder for more information.
 
 Citation
 --------
 
-If you are using this project including publication in research activities, you have to cite it using ([BibTeX format](https://raw.github.com/chdemko/php-sorted-collections/master/cite.bib)). You are also pleased to send me an email to [email protected].
+If you are using this project including publication in research activities, you have to cite it using ([BibTeX format](https://raw.github.com/chdemko/php-sorted-collections/develop/cite.bib)). You are also pleased to send me an email to [email protected].
 * authors: Christophe Demko
 * title: php-sorted-collections: a PHP library for handling sorted collections
 * year: 2014