Add for-scale objects documentation

Author: verma

docs/for-scale-objects.json

@@ -0,0 +1,19 @@
+{
+	"title": "For Scale Objects",
+	"summary": "For scale objects provide perspective into the scale of your data.",
+	"video": "/docs/videos/for-scale-objects.webm",
+	"tags": [
+		{
+			"title": "Place Objects",
+			"offset": 0
+		},
+		{
+			"title": "Clear Objects",
+			"offset": 13
+		},
+		{
+			"title": "Change Units",
+			"offset": 17
+		}
+	]
+}

index.html

@@ -96,6 +96,7 @@ <h5>Adjust the slider to auto-switch the files</h5>
 
 						<div class="labeled-controls">
 							<h4>For scale objects</h4>
+							<a class='doc-tag' href="/docs/for-scale-objects.json"><span class="glyphicon glyphicon-question-sign"></span></a>
 							<h5>Place the <span class='noun'>Empire State Building</span> by ALT (OPTION on Mac OS X) + Double-Clicking anywhere on the point cloud.</h5>
 							<button type="button" class="btn btn-sm btn-default btn-block" id="scale-geoms-clear">Clear All Objects</button>
 							<h5 class='not-first'>Change your world units so that for-scale object sizes are still relevant</h5>