Fix the build. Improve docs require statements

apps/tests/ui/segmented-bar/segmented-bar-tests.ts

@@ -6,9 +6,9 @@ import bindable = require("ui/core/bindable");
 import observable = require("data/observable");
 import color = require("color");
 
-// >> article-require-module
+// >> article-require-segmentedbar-module
 import segmentedBarModule = require("ui/segmented-bar");
-// << article-require-module
+// << article-require-segmentedbar-module
 
 function _createSegmentedBar(): segmentedBarModule.SegmentedBar {
     // >> article-create-segmentedbar

apps/tests/ui/segmented-bar/segmented-bar.md

@@ -5,7 +5,7 @@ description: "Examples for using SegmentedBar"
 ---
 # SegmentedBar
 Using a SegmentedBar requires the "ui/segmented-bar" module.
-<snippet id='article-require-module'/>
+<snippet id='article-require-segmentedbar-module'/>
 ## Creating a SegmentedBar
 <snippet id='article-create-segmentedbar'/>
 ``` XML