Added northrop & github

Author: liawesomesaucer

images/sponsors/GitHub_Logo.png

@@ -5,8 +5,10 @@
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   <meta property="og:title" content="HackXX">
   <meta property="og:description" content="HackXX - a hackathon at UCSD for women">
-  <meta property="og:image" content="images/logo.png"><meta property="og:image:secure_url" content="images/logo.png">
-  <meta property="og:image:type" content="image/png"><title>HackXX</title>
+  <meta property="og:image" content="images/logo.png">
+  <meta property="og:image:secure_url" content="images/logo.png">
+  <meta property="og:image:type" content="image/png">
+  <title>HackXX</title>
   <meta name="theme-color" content="#19A3C5">
   <meta name="description" content="Website of HackXX">
   <meta name="keywords" content="Keywords">
@@ -217,6 +219,10 @@ <h2 class="xx-section--header">Sponsors and Partners</h2>
           </div>
           <div class="xx-sponsors text-center">
             <img class="xx-sponsor--big" id="xx-sponsor--viasat" src="images/sponsors/ViaSat_ColoredLogo.png" />
+            <img class="xx-sponsor--big" id="xx-sponsor--northrop" src="images/sponsors/Northrop_Grumman.svg" />
+          </div>
+          <div class="xx-sponsors text-center">
+            <img class="xx-sponsor" id="xx-sponsor--github" src="images/sponsors/GitHub_Logo.png" />
           </div>
           <div class="xx-sponsors text-center">
             <img class="xx-sponsor" id="xx-sponsor--vr" src="images/sponsors/VR_Shaded_WName.png" />