fixed snippet name (#2815)

Author: deerskindoll

modules/overview/examples/snip_curated-access-to-che.adoc renamed to modules/overview/examples/snip_che-curated-access.adoc

@@ -24,7 +24,7 @@ devEnvironments:
   defaultNamespace:
     autoProvision: false
 ----
-include::example$snip_curated-access-to-che.adoc[]
+include::example$snip_che-curated-access.adoc[]
 
 .Role-based access control (RBAC)