Add date

attic/hardware_comparison_agisoft_photoscan.markdown

@@ -91,7 +91,7 @@ Add ~50W for PSU selection.
 
 ## Example system configurations
 
-All costs are estimated using consumer prices.
+All costs are estimated using consumer prices (Mar 2018).
 
 Base hardware:
 
@@ -122,7 +122,7 @@ Configurations:
 - Test scene: [monuments](http://www.agisoft.com/datasets/monument.zip)
 - Batch jobs: Align Photos, Build Dense Cloud, Build Mesh, Build Texture
 
-Test system 1:
+### Test system 1
 
 - Board: ASUS X99 Deluxe
 - CPU:  i7-5820K 6x3.3 GHz @ 4.7 GHz (over-clocked)