Fix typo in "archetypes"

Author: JKRhb

draft-ietf-asdf-instance-information.md

@@ -611,7 +611,7 @@ Practical uses for patch message include digital twins {{-digital-twin}}, where
 
 # Application Scenarios
 
-The instance-related message format and the four architectures are usable in a number of use cases, some of which we are going to specify in the following.
+The instance-related message format and the four archetypes are usable in a number of use cases, some of which we are going to specify in the following.
 Other specifications may define additional use cases instance-related messages can be used for.
 
 ## Construction