Update README.md

README.md

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 # EcoState
-State-space extension of EcoPath-with-EcoSim
+
+[![Documentation](https://img.shields.io/badge/documentation-EcoState-orange.svg?colorB=E91E63)](https://james-thorson-noaa.github.io/EcoState/)
+
+Package _EcoState_ fits a state-space mass-balance model intended for aquatic ecosystems, using mass-balance equations from matching and dynamical equations matching Ecosim.  Unlike Ecopath with Ecosim (EwE), it fits both biological parameters (e.g., equilibrium biomass and predator-prey vulnerability) and measurement parameters (e.g., catchability coefficients) via fit to time-series data.  It also estimates additional process errors representing nonstationarity in growth efficiency, ecotrophic efficient, migration, or other unmodeled processes.    
 
 ## Installation
 
-EcoState can be installed as a private repo. First click Code -> Download ZIP and save it locally. Then install it from that local copy:
+EcoState can be installed from GitHub using:
 
 ``` r
-library(devtools)
-install_local([LOCAL PATH], dependencies = TRUE)
+library(remotes)
+install_github( "James-Thorson-NOAA/EcoState" )
 ```