Add KaTeX support

Added KaTeX support with accompanying samples

exampleSite/content/post/2017-03-05-math-sample.md

@@ -0,0 +1,49 @@
+---
+title: Math Sample
+subtitle: Using KaTeX
+date: 2017-03-05
+tags: ["example", "math"]
+---
+
+KaTeX can be used to generate complex math formulas server-side. 
+
+$$
+\phi = \frac{(1+\sqrt{5})}{2} = 1.6180339887\cdots
+$$
+
+Additional details can be found on [GitHub](https://github.com/Khan/KaTeX) or on the [Wiki](http://tiddlywiki.com/plugins/tiddlywiki/katex/).
+<!--more-->
+
+### Example 1
+
+If the text between $$ contains newlines it will rendered in display mode:
+```
+$$
+f(x) = \int_{-\infty}^\infty\hat f(\xi)\,e^{2 \pi i \xi x}\,d\xi
+$$
+```
+$$
+f(x) = \int_{-\infty}^\infty\hat f(\xi)\,e^{2 \pi i \xi x}\,d\xi
+$$
+
+
+### Example 2
+```
+$$
+\frac{1}{\Bigl(\sqrt{\phi \sqrt{5}}-\phi\Bigr) e^{\frac25 \pi}} = 1+\frac{e^{-2\pi}} {1+\frac{e^{-4\pi}} {1+\frac{e^{-6\pi}} {1+\frac{e^{-8\pi}} {1+\cdots} } } }
+$$
+```
+​​$$
+\frac{1}{\Bigl(\sqrt{\phi \sqrt{5}}-\phi\Bigr) e^{\frac25 \pi}} = 1+\frac{e^{-2\pi}} {1+\frac{e^{-4\pi}} {1+\frac{e^{-6\pi}} {1+\frac{e^{-8\pi}} {1+\cdots} } } }
+$$
+​​ 
+
+### Example 3
+```
+$$
+1 +  \frac{q^2}{(1-q)}+\frac{q^6}{(1-q)(1-q^2)}+\cdots = \prod_{j=0}^{\infty}\frac{1}{(1-q^{5j+2})(1-q^{5j+3})}, \quad\quad \text{for }\lvert q\rvert<1.
+$$
+```
+$$
+1 +  \frac{q^2}{(1-q)}+\frac{q^6}{(1-q)(1-q^2)}+\cdots = \prod_{j=0}^{\infty}\frac{1}{(1-q^{5j+2})(1-q^{5j+3})}, \quad\quad \text{for }\lvert q\rvert<1.
+$$

layouts/partials/footer.html

@@ -186,7 +186,7 @@
   	    </p>
   	    <!-- Please don't remove this, keep my open source work credited :) -->
     	<p class="credits theme-by text-muted">
-          <a href="http://gohugo.io">Hugo v{{ .Hugo.Version }}</a> powered &nbsp;&bull;&nbsp; Theme by <a href="http://deanattali.com/beautiful-jekyll/">beautiful-jekyll</a> adapted to <a href="https://github.com/halogenica/beautifulhugo">Beautiful Hugo</a>
+          <a href="http://gohugo.io">Hugo v{{ .Hugo.Version }}</a> powered &nbsp;&bull;&nbsp; Theme by <a href="http://deanattali.com/beautiful-jekyll/">Beautiful Jekyll</a> adapted to <a href="https://github.com/halogenica/beautifulhugo">Beautiful Hugo</a>
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     	</p>
       </div>
@@ -194,12 +194,13 @@
   </div>
 </footer>
 
+<script src="https://cdnjs.cloudflare.com/ajax/libs/KaTeX/0.7.1/katex.min.js" integrity="sha384-/y1Nn9+QQAipbNQWU65krzJralCnuOasHncUFXGkdwntGeSvQicrYkiUBwsgUqc1" crossorigin="anonymous"></script>
+<script src="https://cdnjs.cloudflare.com/ajax/libs/KaTeX/0.7.1/contrib/auto-render.min.js" integrity="sha384-dq1/gEHSxPZQ7DdrM82ID4YVol9BYyU7GbWlIwnwyPzotpoc57wDw/guX8EaYGPx" crossorigin="anonymous"></script>
 <script src="https://code.jquery.com/jquery-1.12.4.min.js" integrity="sha256-ZosEbRLbNQzLpnKIkEdrPv7lOy9C27hHQ+Xp8a4MxAQ=" crossorigin="anonymous"></script>
 <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
 <script src="{{ .Site.BaseURL }}/js/main.js"></script>
 <script src="{{ .Site.BaseURL }}/js/highlight.min.js"></script>
-<script>
+<script> hljs.initHighlightingOnLoad(); </script>
-  hljs.initHighlightingOnLoad();
+<script> renderMathInElement(document.body); </script>
-</script>
 
 {{ template "_internal/google_analytics.html" . }}

layouts/partials/head.html

@@ -11,6 +11,7 @@
 
   <link rel="alternate" href="{{ "/index.xml" | absURL }}" type="application/rss+xml" title="{{ .Site.Title }}">
 
+  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/KaTeX/0.7.1/katex.min.css" integrity="sha384-wITovz90syo1dJWVh32uuETPVEtGigN07tkttEqPv+uR2SE/mbQcG7ATL28aI9H0" crossorigin="anonymous">
   <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" />
   <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
   <link rel="stylesheet" href="{{ .Site.BaseURL }}/css/main.css" />