Linkfix in NEWS section of website. (#2707)

Author: JesseAlderliesten

_pkgdown.yml

@@ -63,6 +63,6 @@ reference:
 news:
   releases:
   - text: "Version 2.2.1"
-    href: https://www.tidyverse.org/articles/2019/09/devtools-2-2-1/
+    href: https://tidyverse.org/blog/2019/09/devtools-2-2-1/
   - text: "Version 2.0.0"
-    href: https://www.tidyverse.org/articles/2018/10/devtools-2-0-0/
+    href: https://tidyverse.org/blog/2018/10/devtools-2-0-0/