Use YAML multiline strings for extra code (#401)

* Use YAML multiline strings for extra code

* update README links

README.md

@@ -12,43 +12,43 @@ A generic event data model for future HEP collider experiments.
 
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 |-|-|-|
-| [Vector4f](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L9)      | [Vector3f](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L34)      | [Vector3d](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L56)     |
-| [Vector2f](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L83)     | [TrackState](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L182)   | [Quantity](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L212)    |
-| [CovMatrix2f](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L103) | [CovMatrix3f](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L123)  | [CovMatrix4f](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L142) |
-| [CovMatrix6f](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L162) |   |   |
+| [Vector4f](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L9)      | [Vector3f](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L34)      | [Vector3d](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L57)     |
+| [Vector2f](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L82)     | [TrackState](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L180)   | [Quantity](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L209)    |
+| [CovMatrix2f](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L101) | [CovMatrix3f](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L121)  | [CovMatrix4f](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L140) |
+| [CovMatrix6f](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L160) |   |   |
 
 
 **Datatypes**
 
 | | | |
 |-|-|-|
-| [EventHeader](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L221)         | [MCParticle](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L233)        | [SimTrackerHit](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L299)         |
-| [CaloHitContribution](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L340) | [SimCalorimeterHit](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L352) | [RawCalorimeterHit](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L363)     |
-| [CalorimeterHit](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L372)      | [ParticleID](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L383)        | [Cluster](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L397)               |
-| [TrackerHit3D](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L429)          | [TrackerHitPlane](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L455)   | [RawTimeSeries](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L485)                |
-| [Track](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L499)               | [Vertex](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L516)            | [ReconstructedParticle](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L562) |
-| [TimeSeries](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L601) | [RecDqdx](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L613) |                                                                                          |
+| [EventHeader](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L218)         | [MCParticle](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L230)        | [SimTrackerHit](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L296)         |
+| [CaloHitContribution](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L336) | [SimCalorimeterHit](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L348) | [RawCalorimeterHit](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L359)     |
+| [CalorimeterHit](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L368)      | [ParticleID](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L379)        | [Cluster](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L393)               |
+| [TrackerHit3D](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L425)          | [TrackerHitPlane](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L450)   | [RawTimeSeries](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L478)                |
+| [Track](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L492)               | [Vertex](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L509)            | [ReconstructedParticle](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L555) |
+| [TimeSeries](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L593) | [RecDqdx](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L605) |                                                                                          |
 
 **Links**
 
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 |-|-|-|
-| [RecoMCParticleLink](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L668)        | [CaloHitSimCaloHitLink](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L692)         | [TrackerHitSimTrackerHitLink](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L698)         |
-| [CaloHitMCParticleLink](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L674) | [ClusterMCParticleLink](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L680) | [TrackMCParticleLink](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L686)   |
-| [VertexRecoParticleLink](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L704) | | |
+| [RecoMCParticleLink](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L660)        | [CaloHitSimCaloHitLink](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L684)         | [TrackerHitSimTrackerHitLink](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L690)         |
+| [CaloHitMCParticleLink](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L666) | [ClusterMCParticleLink](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L672) | [TrackMCParticleLink](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L678)   |
+| [VertexRecoParticleLink](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L696) | | |
 
 **Generator related (meta-)data**
 
 | | | |
 |-|-|-|
-| [GeneratorEventParameters](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L625) | | |
-| [GeneratorPdfInfo](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L641) | | |
+| [GeneratorEventParameters](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L617) | | |
+| [GeneratorPdfInfo](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L633) | | |
 
 **Interfaces**
 
 | | | |
 |-|-|-|
-| [TrackerHit](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L652) | | |
+| [TrackerHit](https://github.com/key4hep/EDM4hep/blob/main/edm4hep.yaml#L644) | | |
 
 The tests and examples in the `tests` directory show how to read, write, and use these types in your code.