using canonical url for cran

Author: douwe

README.md

@@ -1,6 +1,6 @@
 # dataSheetParcr
 
-A small R package that contains a parser for data sheets. It is currently used to parse our google sheets with the BioSB curriculum. The parser was constructed with the [`parcr`](https://cran.r-project.org/web/packages/parcr/index.html) package 
+A small R package that contains a parser for data sheets. It is currently used to parse our google sheets with the BioSB curriculum. The parser was constructed with the [`parcr`](https://CRAN.R-project.org/package=parcr) package 
 
 ## Installation