Updating Edge Positioning Doc.

Integrated MathJax
Included worked out examples
Changed Language to achieve a middle ground.
Minor formatting improvements

docs/javascripts/config.js

@@ -0,0 +1,12 @@
+window.MathJax = {
+  tex: {
+    inlineMath: [["\\(", "\\)"]],
+    displayMath: [["\\[", "\\]"]],
+    processEscapes: true,
+    processEnvironments: true
+  },
+  options: {
+    ignoreHtmlClass: ".*|",
+    processHtmlClass: "arithmatex"
+  }
+};