docs: add Posit ROR

Author: maelle

DESCRIPTION

@@ -11,7 +11,8 @@ Authors@R: c(
     person("Olivier", "Roy", role = "aut"),
     person("Salim", "Brüggemann", role = "aut",
            comment = c(ORCID = "0000-0002-5329-5987")),
-    person("Posit Software, PBC", role = c("cph", "fnd"))
+    person("Posit Software, PBC", role = c("cph", "fnd"),
+           comment = c(ROR = "03wc8by49"))
   )
 Description: Generate an attractive and useful website from a source
     package.  'pkgdown' converts your documentation, vignettes, 'README',