😒 chore(README): Link to main branch.

Author: make-github-pseudonymous-again

README.md

@@ -14,17 +14,17 @@ const b = ZZ.from( '-302940923028393' ) ;
 a.mul( b ).toString( ) ; // '-903954021577363596419770144565091'
 ```
 
-[![License](https://img.shields.io/github/license/aureooms/js-integer.svg)](https://raw.githubusercontent.com/aureooms/js-integer/master/LICENSE)
+[![License](https://img.shields.io/github/license/aureooms/js-integer.svg)](https://raw.githubusercontent.com/aureooms/js-integer/main/LICENSE)
 [![Version](https://img.shields.io/npm/v/@aureooms/js-integer.svg)](https://www.npmjs.org/package/@aureooms/js-integer)
-[![Build](https://img.shields.io/travis/aureooms/js-integer/master.svg)](https://travis-ci.org/aureooms/js-integer/branches)
+[![Build](https://img.shields.io/travis/aureooms/js-integer/main.svg)](https://travis-ci.org/aureooms/js-integer/branches)
 [![Dependencies](https://img.shields.io/david/aureooms/js-integer.svg)](https://david-dm.org/aureooms/js-integer)
 [![Dev dependencies](https://img.shields.io/david/dev/aureooms/js-integer.svg)](https://david-dm.org/aureooms/js-integer?type=dev)
 [![GitHub issues](https://img.shields.io/github/issues/aureooms/js-integer.svg)](https://github.com/aureooms/js-integer/issues)
 [![Downloads](https://img.shields.io/npm/dm/@aureooms/js-integer.svg)](https://www.npmjs.org/package/@aureooms/js-integer)
 
 [![Code issues](https://img.shields.io/codeclimate/issues/aureooms/js-integer.svg)](https://codeclimate.com/github/aureooms/js-integer/issues)
 [![Code maintainability](https://img.shields.io/codeclimate/maintainability/aureooms/js-integer.svg)](https://codeclimate.com/github/aureooms/js-integer/trends/churn)
-[![Code coverage (alls)](https://img.shields.io/coveralls/github/aureooms/js-integer/master.svg)](https://coveralls.io/r/aureooms/js-integer)
+[![Code coverage (alls)](https://img.shields.io/coveralls/github/aureooms/js-integer/main.svg)](https://coveralls.io/r/aureooms/js-integer)
 [![Code technical debt](https://img.shields.io/codeclimate/tech-debt/aureooms/js-integer.svg)](https://codeclimate.com/github/aureooms/js-integer/trends/technical_debt)
 [![Documentation](https://aureooms.github.io/js-integer/badge.svg)](https://aureooms.github.io/js-integer/source.html)
 [![Package size](https://img.shields.io/bundlephobia/minzip/@aureooms/js-integer)](https://bundlephobia.com/result?p=@aureooms/js-integer)

doc/manual/example.md

@@ -1,6 +1,6 @@
 # Examples
 
-> More examples in [the test files](https://github.com/aureooms/js-integer/tree/master/test/src).
+> More examples in [the test files](https://github.com/aureooms/js-integer/tree/main/test/src).
 
 ```js
 import { ZZ } from '@aureooms/js-integer' ;