Update README.md

README.md

@@ -1,6 +1,8 @@
 coarseDataTools
 ===============
 
+[![](http://cranlogs.r-pkg.org/badges/coarseDataTools)](http://cran.rstudio.com/web/packages/coarseDataTools/index.html)
+
 This is the repository for the coarseDataTools R package. We use this as a development space. The most recent, stable version of the package can be downloaded either from CRAN (http://cran.r-project.org/web/packages/coarseDataTools/) or from the most recent release version on github (https://github.com/nickreich/coarseDataTools/releases).
 
 This package contains functions to analyze coarsely observed data.
@@ -19,4 +21,4 @@ As of March 2016, coarseDataTools imports functions from the MCMCpack package, w
 source("https://bioconductor.org/biocLite.R")
 biocLite("graph")
 biocLite("Rgraphviz")
-```
+```