+ README changed

README.md

@@ -6,6 +6,8 @@ Bayesian estimation of the GARCH(1,1) model with Student-t innovations
 [![CRAN](http://www.r-pkg.org/badges/version/bayesGARCH)](https://cran.r-project.org/package=bayesGARCH) 
 [![Downloads](http://cranlogs.r-pkg.org/badges/bayesGARCH?color=brightgreen)](http://www.r-pkg.org/pkg/bayesGARCH)
 [![Downloads](http://cranlogs.r-pkg.org/badges/grand-total/bayesGARCH?color=brightgreen)](http://www.r-pkg.org/pkg/bayesGARCH)
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 The package `bayesGARCH` ([Ardia and Hoogerheide, 2010)](https://journal.R-project.org/archive/2010-2/) implements in R 
 the Bayesian estimation procedure described