Apply suggestions from code review

Co-authored-by: Richard Sill <[email protected]>

Author: MacondoExpress

modules/ROOT/pages/migration/index.adoc

@@ -23,7 +23,8 @@ Here is a list of all the breaking changes from version 6.0.0 to 7.0.0.
 
 === Removed the `@unique` directive
 
-The `@unique` directive is no longer supported. 
+The `@unique` directive is no longer supported.
+It cannot always be reliably enforced, potentially leading to data inconsistencies that don't match the schema.
 
 === Removed implicit filtering fields
 
@@ -204,7 +205,8 @@ type Movie @node {
 ----
 |===
 
-Single element relationships cannot be reliably enforced, leading to data inconsistent with the schema. If the GraphQL model requires 1-1 relationships (such as in federations) these can now be achieved with the `@cypher` directive instead:
+Single element relationships cannot be reliably enforced, leading to data inconsistent with the schema.
+If the GraphQL model requires one-to-one relationships (such as in federations) you can now create them with the `@cypher` directive instead:
 
 [source, graphql, indent=0]
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