Test copying over EpiAware function diagram

inst/README.md

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+## Model Diagram
+
+- Solid lines indicate implemented features/analysis.
+- Dashed lines indicate planned features/analysis.
+
+## Current `EpiAware` model diagram
+
+```mermaid
+flowchart LR
+
+A["Underlying GI
+Bijector"]
+
+EpiModel["AbstractTuringEpiModel
+----------------------
+Choice of target
+for latent process:
+
+DirectInfections
+    ExpGrowthRate
+    Renewal"]
+
+InitModel["Priors for
+initial scale of incidence"]
+
+DataW[Data wrangling and QC]
+
+
+ObsData["Observational Data
+---------------------
+Obs. cases y_t"]
+
+LatentProcPriors["Latent process priors"]
+
+LatentProc["AbstractTuringLatentModel
+---------------------
+RandomWalk"]
+
+ObsModelPriors["Observation model priors
+choice of delayed obs. model"]
+
+ObsModel["AbstractObservationModel
+---------------------
+DelayObservations"]
+
+E["Turing model constructor
+---------------------
+generate_epiaware"]
+
+G[Posterior draws]
+H[Posterior checking]
+I[Post-processing]
+
+
+
+A --> EpiData
+EpiData --> EpiModel
+InitModel --> EpiModel
+EpiModel -->E
+ObsData-->E
+DataW-.->ObsData
+LatentProcPriors-->LatentProc
+LatentProc-->E
+ObsModelPriors-->ObsModel
+ObsModel-->E
+
+
+E-->|sample...NUTS...| G
+G-.->H
+H-.->I
+```