text for sections Design and Initialization

README.md

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 This is an example project to demonstrate Literate Programming to create [NetLogo](https://ccl.northwestern.edu/netlogo/) models from ODD+C protocols using [Yarner](https://github.com/mlange-42/yarner).
 
+## How to use this project
+
+TODO
+
 ## Rabies model - ODD protocol
 
 ### Purpose
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 ### Design concepts
 
+Fox families as the only model entities live on a rectangular grid of habitat patches. Patches can be empty or occupied.
+
+Reproduction and juvenile dispersal are subsumed under a single process [Dispersal](#dispersal). Once a year, a certain number of female offspring disperses from each fox family. Time and target location of dispersal are stochastic. Dispersal is restricted by a maximum dispersal radius.
+
+Fox families can become infected with Rabies. Rabies can be transmitted to the 8 immediate neighbouring families. Infection is stochastic and infection probability depends on the number of infected neighbours.
+
 ### Initialization
 
+The model is initialized by populating each habitat patch with a `S`usceptible fox family. One randomly selected family is infected.
+
 ```netlogo
 ;- Setup
 to setup
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 ### Input data
 
+The model uses no input data.
+
 ### Submodels
 
 ```netlogo