Merge pull request #214 from chaijs/update-browser-install-instructions

Update browser install instructions

Author: koddsson

_guides/installation.md

@@ -21,47 +21,17 @@ that include Chai.
 Package is available through [npm](http://npmjs.org):
 
 ```bash
-npm install chai
-```
-
-Recommend adding it to `package.json` devDependencies using a `*` as the version tag.
-This will ensure that you always have the most recent version after running `npm install`,
-which can be especially powerful when paired with a continuous integration tool.
-
-```javascript
-"devDependencies": {
-  "chai": "*",
-  "mocha": "*"
-}, "//": "mocha is our preference, but you can use any test runner you like"
+npm install --save-dev chai
 ```
 
 ### Browser
 
-Include the chai browser build in your testing suite.
+Include the chai browser build in your testing suite. You can either link to your own self-hosted version of chai or through a NPM CDN like [jsDelivr](https://www.jsdelivr.com/) or [unpkg](https://www.unpkg.com/).
 
 ```html
-<script src="chai.js" type="text/javascript"></script>
-```
-
-This will provide `chai` as a global object, or `define` it if you are using AMD.
-
-The latest tagged version will be available for hot-linking at [http://chaijs.com/chai.js]({{site.github.url}}/chai.js).
-If you prefer to host yourself, use the `chai.js` file from the root of the github project.
-We recommend that you always use a version tag as your starting point, so the
-[tag download list](https://github.com/chaijs/chai/tags) is the best place to start.
+<script type="module">
+  import { expect } from 'https://cdn.jsdelivr.net/npm/[email protected]/+esm';
 
-Currently supports all modern browsers: IE 9+, Chrome 7+, FireFox 4+, Safari 5+. Please note
-that the `should` style is currently not compatible with IE9.
-
-If you want to know if your browser is compatible, run the [online test suite]({{site.github.url}}/api/test/).
-
-### Other Platforms
-
-#### Ruby
-
-##### [Konacha](https://github.com/jfirebaugh/konacha)
-
-For testing your Ruby on Rails application using Chai assertions
-and the Mocha test framework, check out Konacha -- a modern
-test harness that takes full advantage of Rails 3 features such as the
-asset pipeline and engines.
+  expect(1 + 1).to.equal(2);
+</script>
+```