Documentation.

h2/src/docsrc/html/build.html

@@ -287,7 +287,7 @@ The last results are available here:
 
 <h2 id="railroad">Generating Railroad Diagrams</h2>
 <p>
-The railroad diagrams are HTML, formatted as nested tables.
+The railroad diagrams of the <a href="grammar.html">SQL grammar</a> are HTML, formatted as nested tables.
 The diagrams are generated as follows:
 </p>
 <ul><li>The BNF parser (<code>org.h2.bnf.Bnf</code>) reads and parses the BNF from the file <code>help.csv</code>.