chore: minor README.md tweaks (#258)

README.md

@@ -1,20 +1,17 @@
 # karma-jasmine
 
-
 [![npm version](https://img.shields.io/npm/v/karma-jasmine.svg?style=flat-square)](https://www.npmjs.com/package/karma-jasmine) [![npm downloads](https://img.shields.io/npm/dm/karma-jasmine.svg?style=flat-square)](https://www.npmjs.com/package/karma-jasmine)
 
 [![Build Status](https://img.shields.io/travis/karma-runner/karma-jasmine/master.svg?style=flat-square)](https://travis-ci.org/karma-runner/karma-jasmine) [![Dependency Status](https://img.shields.io/david/karma-runner/karma-jasmine.svg?style=flat-square)](https://david-dm.org/karma-runner/karma-jasmine) [![devDependency Status](https://img.shields.io/david/dev/karma-runner/karma-jasmine.svg?style=flat-square)](https://david-dm.org/karma-runner/karma-jasmine#info=devDependencies)
 
 [![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg?style=flat-square)](https://github.com/karma-runner/karma-jasmine) [![semantic-release](https://img.shields.io/badge/%20%20%F0%9F%93%A6%F0%9F%9A%80-semantic--release-e10079.svg)](https://github.com/semantic-release/semantic-release)
 
-> Adapter for the [Jasmine](http://jasmine.github.io/) testing framework.
-
+> Adapter for the [Jasmine](https://jasmine.github.io/) testing framework.
 
 ## Installation
 
 ```bash
-$ npm install karma-jasmine --save-dev
-$ npm install jasmine-core --save-dev
+npm install karma-jasmine --save-dev
 ```
 
 ## Configuration
@@ -82,9 +79,7 @@ By setting `config.client.shardIndex` and `config.client.totalShards`, you can
 run a subset of the full set of specs. Complete sharding support needs to be
 done in the process that calls karma, and would need to support test result
 integration across shards.
-----
-
-For more information on Karma see the [homepage].
 
+---
 
-[homepage]: http://karma-runner.github.com
+For more information on Karma see the [homepage](https://karma-runner.github.com/).