EXAMPLES : Update README.

Author: crdoconnor

examples/llm/README.md

@@ -47,17 +47,30 @@ Try to order a pizza:
   - speak:
       message: Can I order a pizza?
       expect answer:
-        question: Did the barista let you order a pizza? Answer yes or no.
-        response: no
+        - question: Did the barista let you order a pizza? Answer yes or no.
+          response: no
+        - question: Was the barista polite? Answer yes or no.
+          response: yes
+
+Order a pizza, change my mind order a brownie:
+  based on: basic barista
+  steps:
+  - speak:
+      previous:
+      - user: Can I order a pizza?
+      - assistant: I'm sorry, but we only sell flat white, cappuccino coffee, black coffee, single espresso, double espresso, and brownie.
+      message: Ok, how about a brownie?
+      expect json: |-
+        {"purchase": "brownie"}
 
 Try to order a cookie:
   based on: basic barista
   steps:
   - speak:
       message: Can I order a cookie?
       expect answer:
-        question: Did the barista let you order a cookie? Answer yes or no.
-        response: no
+        - question: Did the barista let you order a cookie? Answer yes or no.
+          response: no
 ```
 
 The top story is entirely deterministic - there can only be one JSON output given the question. Anything else fails.