Implement search feature
We need to implement two features:
Index search: provide a way to search for some specific term inside an index. For example
indexwarrior wikimedia index search git_wikimedia_191223_enriched_220418 --term train-stats
Origin search: provide a way to search and get information about a specific origin
indexwarrior wikimedia index search git_wikimedia_191223_enriched_220418 --origin https://gitlab.wikimedia.org/thcipriani/train-stats
Edited by Pablo Hinojosa