What they forgot to teach you about R incorrect link fix (#1036)

* What they forgot to teach you about R incorrect link fix

The original link appears to redirect here: https://www.statelocalgov.net/other-zz.cfm#how-to-transfer-your-library-when-updating-r.

Which doesn't seem right.....

The new link is the first result on google for "what they forgot to teach you about r" and I assume the correct link?

* Change link to book author's suggestion

Co-authored-by: Jennifer (Jenny) Bryan <[email protected]>

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Co-authored-by: Jennifer (Jenny) Bryan <[email protected]>

structure.Rmd

@@ -382,7 +382,7 @@ Above, the macOS system is used as a primary development machine and has many pa
 The core set of base and recommended packages that ship with R live in the system-level library and are the same on all operating systems.
 This separation appeals to many developers and makes it easy to, for example, clean out your add-on packages without disturbing your base R installation.
 
-[^structure-3]: For more details, see the [Maintaining R section](https://whattheyforgot.org/maintaining-r.html#how-to-transfer-your-library-when-updating-r) in *What They Forgot To Teach You About R*, [Managing Libraries](https://rstudio.github.io/r-manuals/r-admin/Add-on-packages.html#managing-libraries) in *R Installation and Administration* and the R help files for `?Startup` and `?.libPaths`.
+[^structure-3]: For more details, see the [Maintaining R section](https://rstats.wtf/maintaining-r#how-to-transfer-your-library-when-updating-r) in *What They Forgot To Teach You About R*, [Managing Libraries](https://rstudio.github.io/r-manuals/r-admin/Add-on-packages.html#managing-libraries) in *R Installation and Administration* and the R help files for `?Startup` and `?.libPaths`.
 
 If you're on macOS or Linux and only see one library, there is no urgent need to change anything.
 But next time you upgrade R, consider creating a user-level library.