Clarify instructions

The instructions at this place were unclear, see openwallet-foundation#1477. This is a proposed fix that makes it clear that the "lost" code should be copy-pasted.

demo/AcmeDemoWorkshop.md

@@ -172,16 +172,18 @@ We're going to do option (a), but you can try to implement option (b) as homewor
 First though we need to register a schema and credential definition.  Find this code:
 
 ``` python
-        # TODO: Create schema
         # acme_schema_name = "employee id schema"
         # acme_schema_attrs = ["employee_id", "name", "date", "position"]
         await acme_agent.initialize(
             the_agent=agent,
             # schema_name=acme_schema_name,
             # schema_attrs=acme_schema_attrs,
+        )
+
+        # TODO publish schema and cred def
 ```
 
-... and just remove the ```TODO ```, then uncommment the rest.  Easy, no?
+... and uncomment the code lines. Replace the ```# TODO``` comment with the following code:
 
 ``` python
         with log_timer("Publish schema and cred def duration:"):
@@ -194,7 +196,8 @@ First though we need to register a schema and credential definition.  Find this
                     random.randint(1, 101),
                 )
             )
-            # (schema_id, cred_def_id) = await agent.register_schema_and_creddef(
+            # register schema and cred def
+            (schema_id, cred_def_id) = await agent.register_schema_and_creddef(
                 "employee id schema",
                 version,
                 ["employee_id", "name", "date", "position"],