update readme with CRAN details

README.md

@@ -1,30 +1,37 @@
 # qqman: An R package for creating Q-Q and manhattan plots from GWAS results.
 
+## Citation
+
+Turner, S.D. qqman: an R package for visualizing GWAS results using Q-Q and manhattan plots. *biorXiv* DOI: .
+
+Read the preprint here: xx
+
 ## Installation
 
 Install the stable release from CRAN:
 
 ```coffee
 # Install once
-# Note, not yet available on CRAN
-# install.packages("qqman")
-# library(qqman)
+install.packages("qqman")
+
+# Load each time you use it
+library(qqman)
 ```
 
 Install the most recent development release with devtools (note, there be dragons here):
 
 ```coffee
 # Install once with devtools
 library(devtools)
-install_github("stephenturner/qqman", ref="pkg")
+install_github("stephenturner/qqman")
 
 # Load
 library(qqman)
 ```
 
 ## Usage
 
-See the package vignette for more examples:
+See the [online package vignette](http://cran.r-project.org/web/packages/qqman/vignettes/qqman.html) for more examples:
 
 ```coffee
 vignette("manhattan")
@@ -57,7 +64,6 @@ Get help:
 
 ## Notes
 
-* Submission to CRAN pending.
 * This release is substantially simplified for the sake of maintainability and creating an R package. The old code that allows confidence intervals on the Q-Q plot and allows more flexible annotation and highlighting is still available at the [version 0.0.0 tag](https://github.com/stephenturner/qqman/tree/v0.0.0).
 * Special thanks to Dan Capurso and Tim Knutsen for useful contributions and bugfixes.
 * Thanks to all the blog commenters for pointing out bugs and other issues.