download_image rule should specify input file

[johnbradley]

The download file should specify config["list"] as an input:

BGNN_Core_Workflow/workflow/Snakefile

Lines 10 to 16 in 19c414b

	rule download_image:
	output:'Images/{image}.jpg'
	params: download_link = lambda wildcards: get_name_to_url()[wildcards.image]
	log: 'logs/download_image_{image}.log'
	container:
	'docker://quay.io/biocontainers/gnu-wget:1.18--h7132678_6'
	shell: 'wget -O {output} {params.download_link} > {log} 2>&1'

Something like the following should be added:

   input: config["list"]