update hello workflow example

example_specs/workflows/hello.yaml

@@ -1,39 +1,27 @@
-name: dummy workflow printing msg
+cite:
+- {text: BioImage.IO, url: 'https://doi.org/10.1101/2022.06.07.495102'}
 description: This dummy workflow is intended as a demonstration and for testing.
-type: workflow
 format_version: 0.2.3
-cite:
-- text: BioImage.IO
-  url: 'https://doi.org/10.1101/2022.06.07.495102'
-
+icon: ⚙
+id: bioimageio/hello
 inputs: []
-
+license: MIT
+name: dummy workflow printing msg
 options:
-- name: msg
-  type: string
-  description: Message
-  default: Hello!
-- name: tensor_a
-  type: tensor
-  description: tensor_a whose shape is added to message
+- {default: Hello!, description: Message, name: msg, type: string}
+- {axes: unknown, default: null, description: tensor_a whose shape is added to message,
+  name: tensor_a, type: tensor}
+- axes:
+  - {type: batch}
+  - {description: x dimension, name: x, step: 1.5, type: space, unit: millimeter}
+  - {description: a special index axis, name: demo index, type: index}
   default: null
-  axes: arbitrary
-- name: tensor_b
-  type: tensor
   description: tensor_b whose shape is added to message
-  default: null
-  axes:
-  - type: batch
-  - type: space
-    name: x
-    description: x dimension
-    step: 1.5
-    unit: millimeter
-  - type: index
-    name: demo index
-    description: a special index axis
-
+  name: tensor_b
+  type: tensor
 outputs:
-- name: msg
-  type: string
-  description: A possibly manipulated message.
+- {description: A possibly manipulated message., name: msg, type: string}
+rdf_source: https://raw.githubusercontent.com/bioimage-io/workflows-bioimage-io-python/main/src/bioimageio/workflows/static/workflow_rdfs/hello.yaml
+tags: [workflow]
+type: workflow
+version: 0.1.0