Move upgrade below dependencies in nav

Author: rwinch

modules/ROOT/nav.adoc

@@ -1,5 +1,6 @@
 * xref:index.adoc[Overview]
 * xref:dependencies.adoc[]
+* xref:upgrade.adoc[]
 * xref:object-mapping.adoc[]
 * xref:repositories.adoc[]
 ** xref:repositories/core-concepts.adoc[]
@@ -21,7 +22,6 @@
 * xref:kotlin-coroutines.adoc[]
 * xref:kotlin-extensions.adoc[]
 * xref:kotlin.adoc[]
-* xref:upgrade.adoc[]
 * Appendices
 ** xref:repository-namespace-reference.adoc[]
 ** xref:repository-populator-namespace-reference.adoc[]