docs: cleanup and update README (#23)

* Create LICENSE

* Remove LICENSE from README

* Update the installation instructions

* Update badge in README

Author: koddsson

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2013 Jake Luer [email protected] (http://qualiancy.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -1,35 +1,9 @@
-# AssertionError [![Build Status](https://travis-ci.org/chaijs/assertion-error.svg?branch=master)](https://travis-ci.org/chaijs/assertion-error)
+# AssertionError [![Build Status](https://github.com/chaijs/assertion-error/actions/workflows/nodejs.yml/badge.svg)](https://github.com/chaijs/assertion-error/actions/workflows/nodejs.yml) 
 
 > Error constructor for test and validation frameworks that implements standardized AssertionError specification.
 
 ## Installation
 
-### Node.js
-
-`assertion-error` is available on [npm](http://npmjs.org).
-
-    $ npm install assertion-error
-
-## License
-
-(The MIT License)
-
-Copyright (c) 2013 Jake Luer <[email protected]> (http://qualiancy.com)
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
+```
+$ npm install --save assertion-error
+```