chore(spec): fix example used within spec (#288)

* chore(spec): improve runtime expression examples and fix typo

Author: frankkilcommins

versions/1.0.0.md

@@ -176,7 +176,7 @@ workflows:
       # outputs from this step
       availablePets: $response.body
   outputs:
-      available: $steps.getPetStep.availablePets
+      available: $steps.getPetStep.outputs.availablePets
 ```
 
 #### Info Object
@@ -856,8 +856,8 @@ Request URL            | `$url`            |
 Response value         | `$response.body#/status`       |  In operations which return payloads, references may be made to portions of the response body or the entire body.
 Response header        | `$response.header.Server` |  Single header values only are available
 workflow input        | `$inputs.username` or `$workflows.foo.inputs.username` |  Single input values only are available
-Step output value        | `$steps.someStep.pets` |  In situations where the output named property return payloads, references may be made to portions of the response body or the entire body.
-Workflow output value | `$outputs.bar` or `$workflows.foo.outputs.bar` |  Single input values only are available
+Step output value        | `$steps.someStepId.outputs.pets` |  In situations where the output named property return payloads, references may be made to portions of the response body (e.g., `$steps.someStepId.outputs.pets#/0/id`) or the entire body.
+Workflow output value | `$outputs.bar` or `$workflows.foo.outputs.bar` |  In situations where the output named property return payloads, references may be made to portions of the response body (e.g., `$workflows.foo.outputs.mappedResponse#/name`) or the entire body.
 Components parameter | `$components.parameters.foo` | Accesses a foo parameter defined within the Components Object.
 
 Runtime expressions preserve the type of the referenced value.