Flesh out yaml data about dark-matter-graph

[yymao]

Yes, should put in the Categories section. Should format similarly as the nodes, i.e.:

Categories:
  - label: Models
    description: A "model" is a theoretical framework describing the physical mechanism governing the microphysics of dark matter.  Examples: warm dark matter, axion dark matter, primordial black hole dark matter, etc. 
  - label: Probes

[kadrlica]

@yymao we should add descriptions for the categories themselves (i.e., Models, Probes, Measurements, Targets). Would it be better to do this in the Categories section -- i.e.,

Categories:
  - Models
      description: A "model" is a theoretical framework describing the physical mechanism governing the microphysics of dark matter.  Examples: warm dark matter, axion dark matter, primordial black hole dark matter, etc. 
  - Probes
  - Measurements
  - Targets

or in the individual section for each category -- i.e.

Models:
  description: A "model" is a theoretical framework describing the physical mechanism governing the microphysics of dark matter.  Examples: warm dark matter, axion dark matter, primordial black hole dark matter, etc.
  - key: wdm
    label: Warm dark matter
    description: >-
      Dark matter that acts like a thermal particle                                  
      with mass less than 1 GeV.
...

[johannct]

Probably in Categories, if each category instance already has description levels. What else could be added within the Categories block?

[kadrlica]

I've updated the Categories section to mirror other nodes:

Categories:
  - key: models
    label: Models
    description: >-
      A "model" is a theoretical framework describing the physical                   
      mechanism governing the microphysics of dark matter.  Examples:                
      warm dark matter, axion dark matter, primordial black hole dark                
      matter, etc.

@johannct other elements of the Categories section could define appearance (i.e., color, fontsize, etc.) or additional content (we imagine the description as a mouse-over tooltip, but we may want to add more).

[yymao]

@kadrlica should we then use the key field in the rest of the yaml file? i.e.,

models: 
  - key: sidm
  #...
probes:
  #...

[kadrlica]

@yymao I'm not sure I understand the question. I thought the key field was your addition, so I assumed that this is what we wanted. I believe this is the current format of the other sections

[kadrlica]

Ok, offline chat resolved this. The point is that subsequent sections should match the key rather than the label in the Categories section. In actuality, this is a change in capitalization.

[kadrlica]

This issue (and associated branch) have focused more on the format of the yaml file than the content. As such, I'm going to close this issue and start a new, more general branch for tracking input data.