fix link to cran webpage

Former-commit-id: c867382

Author: bobmuscarella

vignettes/ENMeval-vignette.Rmd

@@ -418,7 +418,7 @@ Below is a running list of other things we plan to add to this vignette.  Feel f
 ## Resources (*under construction*) {#resources}
 
 ###### Web Resources
-- [Hijmans, R. and Elith, J. (2016) Species distribution modeling with R. dismo vignette.](https://cran.r-project.org/web/packages/dismo/vignettes/sdm.pdf)
+- [Hijmans, R. and Elith, J. (2016) Species distribution modeling with R. dismo vignette.](https://cran.r-project.org/web/package=dismo)
 
 - [Phillips, S. J. (2006) Phillips, S. (2006) A brief tutorial on Maxent. AT&T Research. Available at: http://www.cs.princeton.edu/~schapire/maxent/tutorial/tutorial.doc](http://www.cs.princeton.edu/~schapire/maxent/tutorial/tutorial.doc)
 

vignettes/ENMeval-vignette.md

@@ -282,7 +282,7 @@ Introduction
 <!-- - [Web resources](Web resources) -->
 <!-- - [References](References) -->
 <!-- #### Web Resources -->
-<!-- [Hijmans, R. and Elith, J. (2016) Species distribution modeling with R. dismo vignette.](https://cran.r-project.org/web/packages/dismo/vignettes/sdm.pdf) -->
+<!-- [Hijmans, R. and Elith, J. (2016) Species distribution modeling with R. dismo vignette.](https://cran.r-project.org/web/package=dismo) -->
 <!-- [Yoder, J. (2013) Species distribution models in R. The Molecular Ecologist.](http://www.molecularecologist.com/2013/04/species-distribution-models-in-r/) -->
 <!-- [Maxent Google Group](https://groups.google.com/forum/embed/#!forum/maxent) -->
 <!-- #### References -->