Update man page for git_vaccinate() (#1867)

* Update man page for git_vaccinate()

I updated the man page for the git_vaccinate() command such that it documents **all** of the adjustments made to the `.gitignore`. I also reordered the list of files and directories that the command adds to the `.gitignore` such that it fits the order in the output returned after calling the command.

Sorry if my line breaks do not follow your standard conventions. I was a little unsure about that.

* Revert "Update man page for git_vaccinate()"

This reverts commit 839512c.

* Correction of update man page for git_vaccinate()

I corrected my updates suggested in the commit 839512c according to the comments from @jennybc. Thank you!

R/git.R

@@ -506,7 +506,7 @@ default_branch_sitrep <- function() {
 
 #' Vaccinate your global gitignore file
 #'
-#' Adds `.DS_Store`, `.Rproj.user`, `.Rdata`, `.Rhistory`, and `.httr-oauth` to
+#' Adds `.Rproj.user`, `.Rhistory`, `.Rdata`, `.httr-oauth`, `.DS_Store`, and `.quarto` to
 #' your global (a.k.a. user-level) `.gitignore`. This is good practice as it
 #' decreases the chance that you will accidentally leak credentials to GitHub.
 #' `git_vaccinate()` also tries to detect and fix the situation where you have a