update help
considering adding some prepackaged yaml options?
currently point to samples in egapx github repo
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# Changes to be committed:
#	new file:   .shed.yml
#	new file:   EGAPXREADME.md
#	modified:   README.md
#	new file:   assets/default_task_params.yaml
#	new file:   egapx_runner.xml
#	new file:   static/images/Pipeline_sm_ncRNA_CAGE_80pct.png
#	new file:   test-data/yamlconfig_sample
#	modified:   ui/assets/config/executor/docker_minimal.config
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