Use canonical url. Update cran-comments

Author: hadley

README.md

@@ -2,7 +2,7 @@
 
 [![Build Status](https://travis-ci.org/hadley/tidyr.png?branch=master)](https://travis-ci.org/hadley/tidyr) 
 [![codecov.io](http://codecov.io/github/hadley/tidyr/coverage.svg?branch=master)](http://codecov.io/github/hadley/tidyr?branch=master)
-[![CRAN_Status_Badge](http://www.r-pkg.org/badges/version/tidyr)](http://cran.r-project.org/web/packages/tidyr)
+[![CRAN_Status_Badge](http://www.r-pkg.org/badges/version/tidyr)](http://cran.r-project.org/package=tidyr)
 
 tidyr is a reframing of reshape2 designed to accompany the [tidy data framework](http://vita.had.co.nz/papers/tidy-data.html), and to work hand-in-hand with magrittr and dplyr to build a solid pipeline for data analysis. 
 

cran-comments.md

@@ -4,7 +4,10 @@
 * win-builder (devel and release)
 
 ## R CMD check results
-There were no ERRORs, WARNINGs.
+There were no ERRORs, WARNINGs. There is one NOTE:
+
+* License components with restrictions and base license permitting such:
+  MIT + file LICENSE
 
 ## Downstream dependencies