doc: consistent markdown links

Author: eins78

underscore.js

@@ -255,7 +255,7 @@
 
   // Return the maximum element or (element-based computation).
   // Can't optimize arrays of integers longer than 65,535 elements.
-  // See: https://bugs.webkit.org/show_bug.cgi?id=80797
+  // See [WebKit Bug 80797](https://bugs.webkit.org/show_bug.cgi?id=80797)
   _.max = function(obj, iterator, context) {
     if (!iterator && _.isArray(obj) && obj[0] === +obj[0] && obj.length < 65535) {
       return Math.max.apply(Math, obj);
@@ -847,7 +847,7 @@
   // Internal recursive comparison function for `isEqual`.
   var eq = function(a, b, aStack, bStack) {
     // Identical objects are equal. `0 === -0`, but they aren't identical.
-    // See the Harmony `egal` proposal: http://wiki.ecmascript.org/doku.php?id=harmony:egal.
+    // See the [Harmony `egal` proposal](http://wiki.ecmascript.org/doku.php?id=harmony:egal).
     if (a === b) return a !== 0 || 1 / a == 1 / b;
     // A strict comparison is necessary because `null == undefined`.
     if (a == null || b == null) return a === b;