Adding image, linking doc to image

Specifications/Schema SQL.md

@@ -2,7 +2,7 @@
 
 This file gives detail of schema decisions, and function of the major SQL queries. 
 
-You may be interested in the large schema diagram: [Large schema png file](Originals/Schema Diagram.png)
+You may be interested in the large schema diagram: [Large schema png file](Specifications/Originals/Schema Diagram.png)
 
 There is an interactive schema web site: [Schema web site](http://shannonvm.village.virginia.edu/~twl8n/schema_spy_output/)