Add guide to visualisation from metrics about mzqc HOT 4 OPEN

e.g. to value distribution terms, how to use the quantiles

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maybe general guide to metric terms with two sections:

1. visualisation
2. use/interpretation
3. combination (mapping rules)
   For 2. when 'it depends...' e.g. the peak density indications for issues in different modes/scenarios: peakpick algo; fragmentation scheduling or ion collection; sample content, local reference/consistency; additional identification assessment

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For 3. default interpretations in case mapping term is missing? (Any relationship: has_value_concept STATO:0000036 ! outlier term should have a threshold definition term)

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Rather than in the specification document, this can be part of the online documentation. This is more related to specific examples and providing guidance, rather than the technical specification.

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