Image optimizations

_posts/2017-01-01-home.md

@@ -35,7 +35,7 @@ style: center
 </div>
 **Nerd Fonts** is a project that patches developer targeted fonts with a high number of glyphs (icons). Specifically to add a high number of extra glyphs from popular 'iconic fonts' such as [Font Awesome][font-awesome], [Devicons][vorillaz-devicons], [Octicons][octicons], and others.
 <h1 align="center">
-  <a href="https://github.com/ryanoasis/nerd-fonts"><img src="img/sankey-glyphs-combined-diagram.svg" alt="Nerd Fonts Sankey Diagram" /></a>
+  <a href="https://github.com/ryanoasis/nerd-fonts"><img src="img/sankey-glyphs-combined-diagram.png" alt="Nerd Fonts Sankey Diagram" /></a>
 </h1>
 <sub class="text-left"><em>Diagram created using <a href="http://sankeymatic.com/" title="SankeyMATIC (BETA): A Sankey diagram builder for everyone">SankeyMATIC</a></em></sub>
 

_posts/2017-01-02-features.md

@@ -29,7 +29,7 @@ fa-icon: gears
   </div>
   <div class="half column">
     <div class="subtlecircle sectiondivider faicon sectioninner sectioninner1">
-      <img src="https://github.com/ryanoasis/powerline-extra-symbols/raw/master/preview.png" alt="Preview of Powerline Extra Symbols usage in terminal emulator">
+      <img src="/img/nerd-fonts-powerline-extra-terminal.png" alt="Preview of Powerline Extra Symbols usage in terminal emulator">
     </div>
     <div class="subtlecircle sectiondivider faicon sectioninner sectioninner2">
       <div>