Update to 4.5.0 on the homepage

Author: mrmrs

index.html

@@ -31,7 +31,7 @@
       <a href="/" class="dib f5 f4-ns fw6 mt0 mb1 link black-70 dim" title="Home">
         Tachyons
         <div class="dib">
-          <small class="nowrap f6 mt2 mt3-ns pr2 black-70 fw2">v4.4.2</small>
+          <small class="nowrap f6 mt2 mt3-ns pr2 black-70 fw2">v4.5.0</small>
         </div>
       </a>
     </div>
@@ -104,7 +104,7 @@ <h1 class="f4 fw6 f1-ns lh-title measure mt0">
                   <a 
                     class="f6 f5-ns fw6 dib ba b--black-20 bg-blue white ph3 ph4-ns pv2 pv3-ns br2 grow no-underline" 
                     href="https://raw.githubusercontent.com/tachyons-css/tachyons/master/css/tachyons.min.css">
-                    Download <code class="f6 fw4 di">v4.4.1</code>
+                    Download <code class="f6 fw4 di">v4.5.0</code>
                   </a>
                 </div>
               </div>
@@ -116,9 +116,9 @@ <h1 class="mt0 f5 f3-ns">Getting Started</h1>
             <p class="f5 measure lh-copy">
               Copy the line of code below and paste it in the head of the html file(s) you want to include tachyons in.
             </p>
-<pre class="pre black-70" style="overflow: auto"><code class="code f6 dib pa2 bg-black-70 washed-green" style="font-size: 14px;">&lt;link rel="stylesheet" href="https://unpkg.com/tachyons@4.4.1/css/tachyons.min.css"/&gt;</code></pre>
+<pre class="pre black-70" style="overflow: auto"><code class="code f6 dib pa2 bg-black-70 washed-green" style="font-size: 14px;">&lt;link rel="stylesheet" href="https://unpkg.com/tachyons@4.5.0/css/tachyons.min.css"/&gt;</code></pre>
 <p class="mt4"><b>or</b> install via npm</p>
-<pre class="pre black-70" style="overflow: auto"><code class="code f6 dib pa2 bg-black-70 washed-green" style="font-size: 14px;">npm install --save-dev tachyons@4.4.1</code></pre>
+<pre class="pre black-70" style="overflow: auto"><code class="code f6 dib pa2 bg-black-70 washed-green" style="font-size: 14px;">npm install --save-dev tachyons@4.5.0</code></pre>
 <p class="mt4"><b>or</b> grab all the source files and build+develop locally</p>
 <pre class="pre" style="overflow: auto"><code class="code f6 dib pa2 bg-black-70 washed-green" style="font-size: 14px;">git clone git@github.com:tachyons-css/tachyons.git
 cd tachyons
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