Temporarily hide hooks page

docs/modules/ROOT/nav.adoc

@@ -8,7 +8,7 @@
 ** xref:erc721.adoc[ERC721]
 ** xref:erc777.adoc[ERC777]
 
-* xref:using-hooks.adoc[Using Hooks]
+// xref:using-hooks.adoc[Using Hooks]
 
 * xref:gsn.adoc[Gas Station Network]
 ** xref:gsn-strategies.adoc[Strategies]