Typo causing broken link #280 (#293)

Cherry-picked from #280

---------

Co-authored-by: Reneta Popova <[email protected]>

Author: lidiazuin

modules/ROOT/content-nav.adoc

@@ -256,7 +256,7 @@
 **** xref:errors/gql-errors/42N22.adoc[]
 **** xref:errors/gql-errors/42N23.adoc[]
 **** xref:errors/gql-errors/42N24.adoc[]
-**** xref:errors/gql-errors/42I26.adoc[]
+**** xref:errors/gql-errors/42N26.adoc[]
 **** xref:errors/gql-errors/42N28.adoc[]
 **** xref:errors/gql-errors/42N29.adoc[]
 **** xref:errors/gql-errors/42N31.adoc[]
@@ -432,6 +432,7 @@
 **** xref:errors/gql-errors/52N24.adoc[]
 **** xref:errors/gql-errors/52N25.adoc[]
 **** xref:errors/gql-errors/52N26.adoc[]
+**** xref:errors/gql-errors/52N27.adoc[]
 **** xref:errors/gql-errors/52N28.adoc[]
 **** xref:errors/gql-errors/52N29.adoc[]
 **** xref:errors/gql-errors/52N30.adoc[]