bulma-start better 'getting started' (#2147)

* bulma-start best getting started

Instructions are confused because `bulma-start` it's not an extension or component – it's a template. This way, using `npm` and copying files from `node_modules` is NOT intuitive.
`git clone` gives a better understanding of how to get started.

* bulma-start download zip

* Removed git instructions

docs/bulma-start.html

@@ -30,11 +30,15 @@ breadcrumb:
 
 {% include elements/anchor.html name="Install" %}
 
-{% highlight bash %}npm install bulma-start{% endhighlight %}
+<a href="https://github.com/jgthms/bulma-start/archive/master.zip" rel="nofollow noopener">Download bulma-start (.zip)</a>, rename to your project's name (i.e. `my-new-bulma-site`) and:
 
-<p class="block"><em>or</em></p>
+{% highlight bash %}
+cd my-new-bulma-site
+npm install
+npm start
+{% endhighlight %}
 
-{% highlight bash %}yarn add bulma-start{% endhighlight %}
+For more, visit <a href="https://github.com/jgthms/bulma-start#get-your-feet-wet">bulma-start README on Github.</a>
 
 {% include elements/anchor.html name="What’s included" %}