FEP-8b32: Add warnings

8b32/fep-8b32.md

@@ -80,6 +80,8 @@ The controller of the verification method MUST match the actor of activity, or b
 
 Nested objects containing integrity proofs that use [JCS] canonicalization algorithm might not be compatible with JSON-LD processors. To avoid verification errors, implementers MAY re-define properties such as `object` as having `@json` type when signing objects containing other signed objects.
 
+**WARNING: eddsa-jcs-2022 cryptosuite specification is not stable and recommendations for nested objects may change before it becomes a W3C Recommendation.**
+
 ## Examples
 
 ### Signed object
@@ -132,6 +134,8 @@ Nested objects containing integrity proofs that use [JCS] canonicalization algor
 
 ### Signed activity with embedded signed object
 
+**WARNING: recommendations for nested objects may change in the future, see [Nested objects](#nested-objects) section.**
+
 ```json
 {
   "@context": [