re pattern in YAML_Pipelines.

[chhsiao1981]

https://github.com/FNNDSC/CHRIS_docs/blob/master/specs/YAML_Pipelines.adoc

expected: .*\s+v\d+(\.\d+)*
shown in asciidoc viewer: .\s+v\d+(\.\d+)

fix in file: .\*\s+v\d+(\.\d+)*

@jennydaman