Merge pull request #389 from moebrowne/security/sri

Adds SRI for Remote JS Dependencies

index.html

@@ -92,7 +92,7 @@
 	<script src="animation/hypercube.js"></script>
 	<script src="animation/animate.js"></script>
 
-  <script src="https://unpkg.com/tesseract.js@2.0.0/dist/tesseract.min.js"></script>
+	<script src="https://unpkg.com/tesseract.js@2.0.0/dist/tesseract.min.js" integrity="sha384-MTEb82ufpBJ2VCTmPZlD/+vgiT5z6zmOwqU/uDO9IobYm9xCOUEN0WH3czf6ppl8" crossorigin="anonymous"></script>
 	<script src="demo.js"></script>
 	<script>
 	  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){